PRUH - DUNGS® Combustion Controls · Flame detector ... Flamme detector FLW 05 CAN-Bus RS 232 Control unit Burner Control System Design and operation ÖW Oil pressure switch PT Controller

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BCS 300Operation and

assembly instructions

Head offices and factoryKarl Dungs GmbH & Co. KGSiemensstraße 6-10D-73660 Urbach, GermanyTelefon +49 (0)7181-804-0Telefax +49 (0)7181-804-166

Postal addressKarl Dungs GmbH & Co. KGPostfach 12 29D-73602 Schorndorf, Germanye-mail [email protected] www.dungs.com

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Design and operation ..............................................................................................................................................3-22

Actuator drives ...................................................................................................................................................... .23-25

Flame detector .......................................................................................................................................................26-32

Basic settings.........................................................................................................................................................33-62

Power control .........................................................................................................................................................63-65

Fault memory .........................................................................................................................................................66-74

BCS startup with PC-support / BCS-Vision ............................................................................................................75-81

BCS-VISION Overview / application ......................................................................................................................82-95

Table of contentsBCS300


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BCS 300

Burner Control SystemDesign and operation

Product description, characteristics, functions 4Burner configuration / schematic diagram of BCS system 5General notes, technical data 6Block diagram of BCS 7Description of inputs and outputs 8-9Operational status messages / fault messages, selection of system programs 10BCS Gas firing mode - program flow diagrams 11

with ignition valve and 1 or 2 flame detectors, System program 1with ignition valve, 1 or 2 flame detectors and valve leakage control System program 4with ignition valve, 1 or 2 flame detectors and valve leakage control System program 3 12with ignition valve and 1 or 2 flame detectors System program 6with single flame detector (without ignition valve and valve leakage control) System program 2 13with single flame detector and valve leakage control System program 5

Program flow diagram „Controlled shutdown”BCS oil firing mode - program flow diagrams 14

with ignition valve and 1 or 2 flame detectors System program 10with single flame detector (without ignition valve) System program 11Solenoid valve for nozzle linkage and 1 or 2 flame detectors System program 12 15with solenoid valve nozzle linkage and single flame detector System program 13

Program flow diagram „Controlled shutdown” 16Gas valve leakage test (valve proving system) 17Gas valve leakage test - calculation of setting times with MultiBlocs and DMV 18Gas valve leakage test - calculation of setting times with individual solenoid valves 19Functional description of the outputs, general notes and installation instructions 20Functional description of the serial interface (RS 232) 21Dimensions, technical data 22


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Functions

Automatic burner control system suitable for non-permanent operationPermanent operationSteam systems in conformity with TRD

Number ofautomatic burner control programs 10

Valve proving system (VPS) internal

Number of VPS programs 1

Output control standard, run-on

Number of output control programs 2

02-controlwith expansion module EM1 optional

Frequency inverter drive circuitwith expansion module EM1 optional

Stepping motor drive circuits 3

Setting parameters with control unitwith PC

Control unit required for operation no

Product descriptionThe Burner Control System (BCS ) isa modular automatic burner controlsystem for open and closed loop con-trol of oil, gas and dual-fuel burnerswith medium to high output. It con-sists of the following distributed unitswhich intercommunicate via a safety-oriented bus system:

BCS basic modulefor attachment to burner with connec-tivity for:

24 VDC inputs(floating contacts)

- Boiler safety chainOil safety chain- Air pressure switch- Max. gas pressure switch- Min. gas pressure switch- Open-loop control chain- Fuel selection gas/oil- Valve proving system GW VDK- Release heavy oil- Reset

Analog input 4-20 mA- Output controller

230 VAC outputs(3.15 A per output, tot. 6,3 A)

- Solenoid valve, oil feed/return- Nozzle linkage- Ignition gas solenoid valve- Gas solenoid valve 1 (gas side)- Gas solenoid valve 2 (burner side)- Burner motor- Pump motor- Ignition transformers for gas firing

mode- Ignition transformers for oil firing

mode- Load reversal point indication- Fault indication- Gas/oil operation mode indication- Operational status indication

Stepping motors- Actuator drive GAS- Actuator drive OIL- Actuator drive AIR

RS 232- Connection for PC with BCS

visualization software

Flame detector BCS-FLW 05for connecting the following flamesensor:

for permanent operation- Ionization electrode- UV sensor (QRA 53)- Light sensor (RAR 7)- Intrinsically safe flame supervision

device with contact output

for non-permanent operation- UV sensor (QRA 2)

Operating and display unitwith illuminated 4-line LC display, with20 characters per line for startup andplain-text status display.

A mounting frame allows the controlunit to be installed on the front panelof a control cabinet.

Actuator drivesDigitally activated stepping motorswith control electronics.To monitor function and direction ofrotation, a driver with digital feedbackvia an encoder disc is integrated inthe system.

Features

• Open hardware structureExpandability via CAN-bus

• Open software structureincl.. PC interface / service

• software-implemented devices- Automatic burner control system- Gas leakage test- Flame supervision device- Output controller

• Standardized hardware for allexpansion levels

• Simple, menu-prompted systemprogramming



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Burner configuration / schematic diagram of BCS system

DMV Double solenoid valve,solenoid valves on gasside and burner side

FRS Gas pressure controlGF Gas filterGW min. Min. gas pressure switchGW max. Max. gas pressure switchKH Ball valve

LGW Air pressure switchM Blower motorÖl-VL Oil solenoid valve supply lineÖl-RL Oil solenoid valve return lineÖl-D Nozzle linkage valveÖP Oil pumpÖV Oil supply lineÖR Oil return line

FRSKH GF

DMV

PT

M

Z-MV

ST-Öl

ST-GasST-Luft

Öl-Vl Öl-Rl Öl-D

BCS BCSVVisionision

ZT

LGW

5

1015

20

2530

3540

45

50

LGW

11/99 KST

510

15

2025

3035

40

4550

GW 50 A5

Made in GermanyI P 5 4

GWmin.

GWmax.

5

1015

20

2530

3540

45

50

GW

PC

M1

M3

M2

ÖW

ÖR

ÖV

ÖP

UV

.

B BurnerC ControlS System

FlammedetectorFLW 05

CAN-Bus

RS 232

Control unit


ÖW Oil pressure switchPT ControllerST-Öl Oil control valve actuatorST-Gas Gas damper actuatorUV Flame sensorZ-MV Ignition gas solenoid valveZT Ignition transformer


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General notesThe BCS is an automatic burner con-trol system for oil and gas burners withan integrated gas valve proving sys-tem.It meets the following standards interms of its design and function:

• EN 298 Automatic Burner ControlSystems for Gas Burners and GasAppliances with and without Blower

• DINIEC 255• VDE 0435 Electr. Relays• DIN VDE 0700• EN 60730 Safety of El. Equipment

for Domestic Use• prEN 1643 Leak Testing Devices• EN 230 Oil atomizing burners of

monoblock type and all associatedstandards

Installation, startup and maintenancemay only be performed by authorizedspecialist personnel in accordancethe applicable directives and regula-tions:

• TRD 604 Technical Rules for SteamBoilers... without Continuous Sur-veillance

• DIN VDE 0116 Electrical Equipmentof Burners

• DIN VDE 0100 Requirements forErection of Power Installations withCapacities up to 1 kV

• DIN VDE 0101 Requirements forErection of Power Installations withCapacities over 1 kV

• DIN VDE 0160 Equipment of PowerInstallations with Electronic Devices

• TRD 411 - 414, Technical Rules forSteam Boilers ...-Burners on SteamBoilers

• DIN VDE 0631; EN 60730Special Requirements for Auto-matic, Electrical Burner Control andMonitoring Systems

• DINIEC 68 Environmental Tests• Potential Equalization in accordance

with EN60204-1, 8 must be ensured• Bus lines and lines conducting sup-

ply voltage must be laid separately• BCS lines and lines of electrical

equipment which generates highfrequency signals with a high level(e.g. frequency inverters, ignitiondevices etc.) must be laid sepa-rately. Attention must be paid to thephysical distance between BCSand above equipment.


CAN Controller Area Networkensures- high availability- maximum safety- good cost-performance ratio- network extension to 1000 m at 25 kBit/s- message prioritization- standardization to ISO / DIS 11898- hardware implementation on microprocessor

The safety periods of theautomatic burner control

system cannot be changed by op-erating personnel. It is not permit-ted to extend these periods by us-ing external switching measures!

The manufacturer shall notbe liable for damages arising

due to the following reasons:• improper use• faulty installation or correctivemaintenance by the purchaser orthird party incl. installation of non-original parts

• Electrical equipment in the immedi-ate vicinity of the BCS must beequipped with suitable interferencesuppression devices.

• BCS activated switching elementsand actuators must, if necessary, beequipped with suitable interferencesuppression devices

Technical dataOperating voltage 230 V (+10%/-15%)Frequency 50...60 HzClass of protection II as per VDE 0660, EN 493-1Electrical switching cycles as per EN 298Mechanical switching cycles as per TRD 604Contact rating 3.15 A as per EN 298Analog input load impedance 25 OhmBack-up fuse max. 10 A (slow-acting)Equipment fuse 6.3 A (slow-acting)

0,1 A (slow-acting)Interference immunity EN 298Emission EN 50011 Class A

150 kHz - 1 GHzMax. permissible ambient temperatures

Storage - 20°C … + 70°COperation 0°C … + 60°C

Degree of protection provided byenclosure (EN 60529)BCS basic unit Enclosure IP 40, terminals IP 20Display and control unit Enclosure IP 54, terminals IP 20BCS-FLW 05, flame detector Enclosure IP 40, terminals IP 20

IP 40 must be provided by installation.Installation position: anyTerminals 2 x 1.5 mm or 1 x 2.5 mm, withdrawablePower consumptionBCS (incl. control unit) < 10 VAFLW 05 < 1.5 VABus topology due to the low transfer rate, the bus can

have a linear or radial configuration.

Classifications of the F B L L B Bautomatic burner control system

• The screen of the bus line must beconnected to the PE potential atboth ends of the cable. Care mustbe taken to ensure that there is nopotential difference between thescreen ends (see Potential equali-zation)


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Block diagram of BCS

P1NLPE

P1NLPE

Ist mA4…20

CAN

MGAS

M OIL

M AIR

Servomotors

Line voltage 230 VAC

14 VA powersupply unit

Oil valves

Ignition valve

Nozzlelinkage

Safety gasvalve

Main gasvalve

Ignitiontransformergas

Ignitiontransformeroil

Blowermotor

Oil pumpmotorGas/oil

Operation

LoadreversalFault

Outputs 230 VAC

20 VDC inputs

Control chainFuel type selection(GAS / OIL)Reset

GND

GW 1/2

GND

Boilersafety chain

Releaseheavy oilGND

Oilsafety chain

Air pressureswitch

Max. gaspressure switch

Min. gaspressure switch

Output controller4…20 mA

WD

RIN

CH

CL

GND

CAN

Control Unit

RS 232

PC

I/O m

odul

es

I/O m

odul

es

Saf

ety

com

pute

r 1

Saf

ety

com

pute

r 2

Net

wor

k co

mpu

ter

AutomaticburnercontrolsystemGAS

AutomaticburnercontrolsystemOIL

outputcontrol

Gas valveprovingsystem

Combinedfuel and airregulation

DDC

Systembus

P1NLPE

GW W R

GND

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 27 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12

L1

PE

N

F1

F2

F3

F4

F5

F6

1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6

Flammedetector

Flammen-wächter

BCS

BCS

Burner

Control

System

GAS

Automatenprogramm Gasbetrieb Nr. => 1Enter Info

ÖL

F1 F2 F3

M P

R

BCS BCSVVisionision

EA

SA

EB

SB

OK

WD

GN

D

AA

MA

AB

MB

EA

SA

EB

SB

OK

WD

GN

D

AA

MA

AB

MB

EA

SA

EB

SB

OK

WD

GN

D

AA

MA

AB

MB

s

s

s

s

s

s

s

s

s

s

s

s

BCS

04/99 KST

P3

P2

P3

P2

P3

P2



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BCS hardware

EPROMsafetycomputer

EPROMsafetycomputer

EPROMnetworkcomputer

Functional description of the inputsand outputs

InputsAll inputs are rated for 24 VDC.

Burner „on“ (open-loop controlchain)Terminals 1/4If no signal is applied, the burner doesnot come on when a control requestis issued. If the signal is canceledduring operation, an immediate shut-down follows.

Fuel type selection (oil / gas)Terminals 2/4Active = Oil firing modeIf the fuel type is changed over dur-ing operation, the system switches tolow load, shuts down, changes fueltype and restarts.

ResetTerminals 3/4To reset or unlock the system, pressthe Reset key.

Gas valve leakage test (GW VDK)Terminals 5/6see Program flow - leakage test.

Heavy oil release signalTerminals 7/8The contact is interrogated in the sys-tem program „oil firing with solenoidvalve nozzle linkage“ (Oil firing modewith solenoid valve nozzle linkage).Before the solenoid valve nozzle link-


age opens, the contact must beclosed. If the contact is not closed,the system waits.The maximum waiting time is 45 s. Thewaiting time begins when the feed/re-turn solenoid valves open.If the contact is still open after thewaiting time expires, the system inter-locks.During the operational phase, open-ing of the contacts leads to a fault lock-out and a corresponding fault mes-sage is displayed in plain text.If the input is not required, terminals 7and 8 must be bridged.

Boiler safety chainTerminals 9/10Supervision period:from burner „ON“ (open-loop controlchain) until closing of fuel valves. Ifthe input is open for longer than 100ms during this period, the system in-terlocks.

Oil safety chainTerminals 11/12Supervision period:before opening of the oil valves andthen from 1 s after the start of the firstsafety period until closing of the oilvalves.If the input is open for longer than 1ms, the system interlocks after astartup.

Air pressure switchTerminals 13/14After 30% of the preventilation periodhas expired, the air pressure switchmust respond. If the contact of the airpressure switch is closed during theLDW idle state check,the system waits for max. 60 s andthen interlocks.LDW Idle state check = contact openbefore blower start.

„Max“ gas pressure switchTerminals 15/16Supervision period: before opening ofthe gas valves until closing of the gasvalves.If GWmax is opened during the su-pervision period, the system interlocksafter a startup (the contact opens).

„Min“ gas pressure switchTerminals 17/18When the contact opens (after con-troller „ON“), the burner shuts downimmediately (display).If the gas pressure switch opens morethan 4 times within 1 hour, a lockoutfollows.The contact is not interrogated duringthe 1st safety period or 2nd safetyperiod.

Output controller 4…20mATerminals 19/20for a floating sensor. Resolution: 8 bit.


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OutputsAll outputs are implemented as 230VAC signals.

Terminals 4/5/6Oil solenoid valve feed/returnsee program flows

Terminals 7/8/9Nozzle linkagesee program flows

Terminals 10/11/12Ignition gas solenoid valvesee program flows

Terminals 13/14/15Gas solenoid valve (gas side)see program flows

Terminals 16/17/18Gas solenoid valve (burner side)see program flows

Terminals 19/20/21Ignition transformer for gas firingmodeThe ignition transformer for gas firingmode is switched on after the „igni-tion“ (Ignition) feedback signal is re-ceived. The signal is canceled shortlybefore the end of the 1st safety pe-riod.see program flows

Terminals 22/23/24Ignition transformer for oil firingmodeThe ignition transformer oil is switchedon after the „ignition“ (Ignition) feed-back signal is received. The signal iscanceled shortly before the end of the1st safety period.see program flows

Terminals 25Pump motor (oil pump)see program flows

Terminals 26Indication of gas/oil operatingmodeThe output is set when the fuel type„Oil“ is selected. The output is setwhen the fuel type „Gas“ is selected.This state also exists after changesare effected in the menu -M- or -P- forexample.

Terminals 27Indication of operationThe output is set from:end of safety period of automaticburner control programs until: shut-down of fuel feed.

Terminals 28Burner motor (blower)see program flows

Terminals 29Indication of load reversal pointThe output is set or not set in depend-ence on load points 1 to 100.

Terminals 30Indication of faultIf a lockout occurs, an external faultindicator lamp comes on.


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Actuator drive received no „ready“ signal

Heavy oil release open

Flame failure

Main flame signal during preventilation period

Ignition flame signal during preventilation period

Stabilization period after ignition flame failure

No ignition flame signal after safety period

No main flame signal after safety period

LDW switched prior to startup

LDW not switched during preventilation period

LDW deficiency of air during operation

Gas pressure missing

Gas-side valve defective

Burner-side valve defective

Flame simulation supervision after shutdown

Gas max.

Oil safety chain

Ignition flame failure

Boiler safety chain

Controller signal < 3.5 mA

Operational status messages / fault messagesAll fault messages of the user program are displayed in plain text.

System program selectionAutomatic burner control programs for gas firing modeSystem program No.:1 1 or 2 flame detectors, with ignition valve, special

features: none

2 1 flame detector, without ignition valve, special fea-tures: none

3 Valve proving system, 1 or 2 flame detectors, withignition valve, special features: ignition gas take-off before valve on gas side. The valve on the gasside opens 5 s earlier than the valve on the burnerside

4 Valve proving system, 1 or 2 flame detectors, withignition valve,special features: ignition gas takeoff betweenvalves on gas side and burner side. The valve onthe gas side opens with ignition gas valve earlierthan the valve on the burner side

5 Valve proving system, 1 flame detector, withoutignition gas valve, special features:The valve on the gas side opens 5 s earlier thanthe valve on the burner side

6 2 flame detectors, with ignition gas valve, specialfeatures: monitoring of the ignition flame and mainflame during operation.

Automatic burner control programs for oil firing modeSystem program No.:10 1 or 2 flame detectors, with ignition valve without

nozzle linkage supervision (DG)Special features: none

11 1 flame sensor, without ignition valve without DG,special features: none

12 1 or 2 flame detectors, with ignition valve and DG,special features: the feed/return solenoid valvesopen at the end of the pre-ignition phase

13 1 or 2 flame detectors, without ignition valve, withDG,Special features: the feed/return solenoid valvesopen at the start of the pre-ignition phase.

Valve proving system program

Valve test prior to burner startup with gas valves



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BCS Gas firing mode System program 1

Program flow diagram with ignition valve and 1 or 2 flame detectors(without valve leakage control)

BCS Gas firing mode System program 4Program flow diagram with ignition valve, 1 or 2 flame detectors and valve leakage control(ignition gas takeoff between safety valve and main gas valve)

Legend of time sequence chartt 1 Air damper delay time 0…60s

(star delta changeover)t 3 Preventilation period 1…250st 4 Air pressure switch must actuate after 30%

of the preventilation period has expiredt 5 Start of ignition feedback 0…250st 6 Pre-ignition 0…30st 7 Ignition 2st 8 1st safety period 3st 9 Stabilization period of ignition flame 0…10s

Safety period for ignition valve operation <1s=t 14t 10 within the period t 10 2s

Safety period for ignition valve operation <1s=t 14t 11 2nd safety period 3st 12 within the period

t 12 Safety periodMain valve operation <1s=t 14

t 13 Control release delay timet 14 Safety period of flame detector <1s

Duration of flame simulation supervision fromthe end of t 4 until the start of t 5


(star delta changeover)t 3 Preventilation period 1…250st 4 Air pressure switch must actuate after 30% of

the preventilation period has expiredt 5 Start of ignition feedback 0…250st 6 Pre-ignition 0…30st 7 Ignition 2st 8 1st safety period 3st 9 Stabilization period of ignition flame 0…10s






Control chain

Servomotors

Blower motor

Air pressure switch

Ignition

Ignition valve

Ignition flame detector

Safety gas valve

Burner gas valve

Main flame detector

Output controllerModulation

t 6

t 8

t 10

t 11

t 13 t 14

t 1

t 12

t 9

t 7

t 4 t 5

t 3

Flamefailure

FaultlockoutBCS-G 2

Control chain

Servomotors

Blower motor

Air pressure switch

Ignition

Ignition valve


Safety gas valve

Burner gas valve

Main flame detector


t 6

t 8

t 10

t 11

t 13 t 14

t 1

t 12

t 9

t 7

t 4 t 5

t 3

Flamefailure

FaultlockoutBCS-G 1



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Program flow diagram with ignition valve, 1 or 2 flame detectors and valve leakage control(ignition gas takeoff before safety gas valve)




Safety period for ignition valve operation <1s=t 15t 10 Period 5s



t 13 safety periodMain valve operation <1s=t 15



Control chain

Servomotors

Blower motor

Air pressure switch

Ignition

Ignition valve


Safety gas valve

Burner gas valve

Main flame detector


t 6

t 8

t 10

t 11

t 13 t 14

t 1

t 12

t 9

t 7

t 4 t 5

t 3

Flamefailure

Faultlockout

Flamefailure

t 15

BCS-G 4

Control chain

Exhaust gas damper

Servomotors

Blower motor

Air pressure switch

Ignition

Ignition valve


Safety gas valve

Burner gas valve

Main flame detector


t 6

t 8

t 10

t 12

t 14 t 15

t 1

t 13

t 9

t 7

t 4 t 5

t 3

Flamefailure

Faultlockout

t 11

BCS-G 3






Safety period for ignition valve operation <1s=t 14t 11 2nd safety period 3st 12 within the period t 12: safety period

Ignition valve/main valve operation <1s=t 14t 13 Control release delay timet 14 Safety period of flame detector <1s


t 15 Safety period for ignition flame detectoroperation <1s


Program flow diagram with ignition valve and 2 flame detectors,ignition flame supervision during operation


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Program flow diagram with single flame detector(without ignition valve and valve leakage control)


Program flow diagram with single flame detector and valve leakage controlSafety valve opens before main gas valve (without ignition valve)


(star delta changeover)t 3 Preventilation period 1…250st 4 Air pressure switch must actuate after 30% of

the preventilation period has expiredt 5 Start of ignition feedback 0…250st 6 Pre-ignition 0…30st 6´ Period 5st 7 Ignition 2st 8 1st safety period 3st 9 within the period



Duration of flame simulation supervisionfrom the end of t 4 until the start of t 5



of the preventilation period has expiredt 5 Start of ignition feedback 0…250st 6 Pre-ignition 0…30st 7 Ignition 2st 8 1st safety period 3st 9 within the period



Duration of flame simulation supervisionfrom the end of t 4 until the start of t 5

Program flow diagram „Regelabschaltung” (Controlled shutdown)

Legend of time sequence chartt 20 Post-vent period 1…250st 21 Valve on burner side closes 2s

after valve ongas side to evaluate test section

t 22 Flame simulation monitoring 0…50safter controlled shut-down

Control chain

Exhaust gas damper

Servomotors

Blower motor

Air pressure switch

Ignition

Ignition valve


Safety gas valve

Burner gas valve

Main flame detector


t 22

t 20

t 21

BCS-G 7

Faultlockout

Control chain

Servomotors

Blower motor

Air pressure switch

Ignition

Safety gas valve

Burner gas valve

Main flame detector


t 6

t 8

t 10 t 11

t 1

t 9

t 6´

t 4 t 5

t 3

Flamefailure

t 7

BCS-G 6

Control chain

Servomotors

Blower motor

Air pressure switch

Ignition

Ignition valve


Safety gas valve

Burner gas valve

Main flame detector


t 6

t 8

t 10 t 11

t 1

t 9

t 7

t 4 t 5

t 3

Flamefailure

FaultlockoutBCS-G 5



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BCS Oil firing mode System program 11

Program flow diagram with single flame detector(without ignition valve)


Program flow diagram with ignition valve and 1 or 2 flame detectors

Legend of time sequence chartt 1 Air damper delay time 0…60s(star delta changeover)t 3 Preventilation period 15…250st 4 Idle state check of air pressure switch

(30% of preventilation period)t 6 Pre-ignition 0…30st 7 Ignition 4st 8 1st safety period 5st 9 Stabilization period of ignition flame 0…10s



t 12 safety periodMain valve operation <1s= t 14




(star delta changeover)t 3 Preventilation period 5…250st 4 Idle state check of air pressure switch

(30% of preventilation period)t 6 Pre-ignition 0…30st 7 Ignition 4st 8 1st safety period 5st 9 within the period




Faultlockout

t 6

t 8

t 10

t 11

t 13 t 14

t 1

t 12

t 9

t 7

t 4

t 3

Flamefailure

Control chain

Oil safety chain

Servomotors

Blower motor

Oil pump motor

Air pressure switch

Ignition

Ignition valve


Feed/returnsolenoid valve

Main flame detector


BCS Oil firing mode 10

t 11.1

Faultlockout

t 6

t 8

t 10 t 11

t 1

t 9

t 7

t 4

t 3

Flamefailure

Control chain

Oil safety chain

Servomotors

Blower motor

Oil pump motor

Air pressure switch

Ignition

Feed/returnsolenoid valve

Main flame detector



t 8.1



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Program flow diagram with solenoid valve of nozzle linkageand single flame detector (without ignition valve)



(30% of preventilation period)t 6 Pre-ignition 0…30st 7 Ignition 4st 8 1st safety period 5st 9 Stabilization period of ignition flame 0…10st 9.1Thermostat release signal for heavy oil

operation(EL => input bridged)max. 45s (t 9.1 = 45s -t8 - t9) Safety period for ignition valveoperation <1s=t 14

t 10 within the period t 10 4sSafety period for ignition valve operation <1s=t 14

t 11 2nd safety period 5st 12 within the period






(30% of preventilation period)t 6 Pre-ignition 0…30st 6.1Thermostat release signal for heavy oil

operation (EL => input bridged)max. 45s (t6.1 = 45s -t6)

t 7 Ignition 4st 8 1st safety period 5st 9 within the period





Program flow diagram with ignition valve,Solenoid valve for nozzle linkage and 1 or 2 flame detectors

Faultlockout

t 6

t 8

t 10

t 11

t 13 t 14

t 1

t 12

t 9

t 7

t 4

t 3

Flamefailure

Control chain

Oil safety chain

Servomotors

Blower motor

Oil pump motor

Air pressure switch

Ignition

Ignition valve


Feed/returnsolenoid valveNozzle linkage MV

Main flame detector



t 11.1

t 9.1

Faultlockout

t 6

t 8

t 10 t 11

t 1

t 9

t 7

t 4

t 3

Flamefailure

Control chain

Oil safety chain

Servomotors

Blower motor

Oil pump motor

Air pressure switch

Ignition

Ignition valve



Main flame detector



t 8.1

t 6.1



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Program flow diagram „Controlled shutdown”

Legend of time sequence chartt 20 Postventilation period 1…250st 21 Flame simulation supervision 0…50s

after controlled shutdown

t 21

t 20

Control chain

Servomotors

Blower motor

Air pressure switch


Main flame detector




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Gas valve leakage test (valve provingsystem)

The leakage test is only performed in gasfiring mode during the preventilation pe-riod prior to burner startup. If no leakageis detected, burner startup is enabled. Ifa leakage is detected, the BCS remainslocked out.

The leakage test, in connection with gaspressure switch GW VDK, serves to checkthe soundness of two gas solenoid valvesconnected in series.

The valve on the gas inlet side (safety so-lenoid valve) is tested by evacuating thetest section and monitoring the increasein pressure. The valve on the burner side(main valve) is tested by filling the testsection and monitoring the decrease inpressure.

If the pressure rises above the max. per-missible value during the first test phaseor drops below the min. permissible valueduring the second test phase, the systeminterlocks and inhibits burner startup.

Operational sequence and programflow - leakage test

The distance between the two gas valves- from valve seat to valve seat - is de-scribed as the „test section“. All parts lo-cated within the test section, such as pres-sure switch, tubes, glands etc., are testedsimultaneously for leakage.

This test is performed at burner startup intwo phases:

1. Testing of valve on gas inlet side(MV 1)

2. Testing of valve on burner side (MV 2).

The test phase prior to burner startup be-gins with the preventilation period, andelapses in parallel with the preventilationperiod.If the preventilation period is shorter thanthe leakage test phase, the system waitsuntil the end of the test phase.If the test is conducted prior to burnerstartup, valve MV 2 is opened for 3 s whenthe controller is switched on.The pressure by test section drops to at-mospheric pressure or combustion cham-ber pressure.

During the variable test period from 3…30s, the pressure in the test section must notexceed the operating point of the GWVDK.

If this nevertheless occurs due to a leak-age of gas valve MV 1, the BCS interlocksin the fault state. A fault message is nowdisplayed.

After the end of a trouble-free first testphase, valve MV1 is opened for 3 s. Thetest section is subjected to gas pressureand the second test phase commences.

During the following test period, the pres-sure in the test section must not drop be-low the operating point of the GW VDK.

If the pressure drops due to a leakage ingas valve MV 2, the GW VDK is activated.

The BCS interlocks and enters the faultstate. A fault message indicating whichsolenoid valve is leaky now appears.


Internal valve proving systemTest prior to burner startup (with fuel valves only)

MV 1 Gas valve on gas side (safety solenoid valve)MV 2 Gas valve on burner side (burner solenoid valve)GW VDK pressure switchTest section

BCS

MV 1 MV 2

GW 1/2

Outputs13/14/15

Inputs5/6 -GW 1/2

Outputs16/17/18

Schematic diagram Legend of sequence of operations

Zeit Function Fault messaget 1 Vent (3s)t 2 Test (3…30s) MV 1 leaky,

gas pressure set too hight 3 Fill (3s)t 4 Test (3…30s) MV 2 leakyafter start release ort 4 IgnitionControlled shutdown: MV 2 closes 2 s later than MV 1


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Pa (mbar) Gas pressure at GW VDKSetting value of pressure switch Pa /2.

Model calculation (1, 2):

Pa = 40 mbarSetting value of GW VDK 20 mbar

Vp = 1,7 dm3 (DMV…5080)

t2 or t4 (s) 40 • 1,7 • 3 / 275 = 0,74 sor t2 or t4 = 1 s.

Gas valve leakage testCalculation of setting time t 2 or t 4 with MultiBloc and DMV

Pe (mbar) Gas pressure at GW VDKSetting value of pressure switch Pe /2.

Model calculation (3):

Pe = 100 mbarSetting value of GW VDK 50 mbar

Vp = 1,7 dm3 (DMV…5080)

t2 or t4 (s) 100 • 1,7 • 3 / 745 = 0,68 sor t2 or t4 = 1 s.

Gas pressure control devicedownstream of DMV

Vp (dm3) Volume between gas valves to be moni-tored (test volume).In the case of double solenoid valves(DMV), the valve volume is a product of V1(outlet end) and V2 (inlet end).

3 Factor for conversion value, dimensionsand safety allowance.

Qp (dm3) Leakage rate as per EN 1643.Where V (gas flow rate) is equal to or<50 m3/h is Qp = 50 dm3, where > 50 m3/hQp = 0.1% of the gas flow rate at max.burner capacity, e. g.275 m3/h • 0.1 = 0.275 m3/h (275 dm3/h)

t2 or t4 (s) test time to be set (in seconds). The calcu-lated value applies to test time t2 or t4.Both times must be set to the same value!(according to input in level 3)

Test volume Vp The test volumes of DUNGS double sole-noid valves and MultiBlocs are specified inthe following table.

Fitting Test volume (dm 3)Threaded connection Rp Flange connection DN1 11/4 11/2 2 21/2 40 50 65 80 100 125 150 200

Double solenoid valvesDMV…5… 0,25 0,25 0,25 0,6 0,36 0,36 0,6 1,7 2,3 3,75

Multiple actuatorsMB-…4… 0,25 0,28 0,25 0,25 0,6DMV-SE…5… 0,25 0,25 0,25 0,6 0,36 0,36 0,6 1,7 2,3 3,75DMV-VEF…5… 0,25 0,25 0,25 0,6 0,36 0,36 0,6 1,7 2,3 3,75

Double solenoid valves and MultiBlocs (MB-DLE, MB-VEF)

1

Pa Vp

GW VDK= Pa/2

MB… 3

Pe Vp

GW VDK= Pe/2

FRSDMV2 GW VDK= Pa/2

Pa Vp

FRS DMV


Multiblock Gas pressure controldevice upstream of DMV

t2 = t4 = Pa • Vp • 3/Qp t2 = t4 = Pe • Vp • 3/Qp


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Pa (mbar) Gas pressure at GW VDKSetting value of pressure switch Pa /2.


Pa = 40 mbarSetting value of GW VDK 20 mbar

Vp = 3,8 dm3 (MV…2080) + 0,25 m Tube= 1,25 dm3

t2 or t4 (s) 40 • (3,8 + 1,25) • 3 / 275 = 2,2 sor t2 or t4 = 3 s.

Gas valve leakage testCalculation of setting time t 2 or t 4 with individual solenoid valves

Pe (mbar) Gas pressure at GW VDKSetting value of pressure switch Pe /2.


Pe = 100 mbarSetting value of GW VDK 50 mbar

Vp = 3,8 dm3 (MV…2080) + 0,25 m Tube= 1,25 dm3

t2 or t4 (s) 100 • (3,8 + 1,25) • 3 / 745 = 2,03 sor t2 or t4 = 3 s.

Gas pressure control downstream of the gas valves

Vp (dm3) Volume between gas valves to be moni-tored (test volume).In the case of double solenoid valves(DMV), the valve volume is a product of V1(outlet end) and V2 (inlet end).

3 Factor for conversion value, dimensionsand safety allowance.

Qp (dm3) Leakage rate as per EN 1643.Where V (gas flow rate) is equal to or< 50 m3/h is Qp = 50 dm3.where > 50 m3/hQp = 0.1% of the gas flow rate at max.burner output, e. g.275 m3/h • 0.1=0.275 m3/h (275 dm3/h)

t2 or t4 (s) test time to be set (in seconds). The calcu-lated value applies to test time t2 or t4.Both times must be set to the same value!(according to input in level 3)

Test volume Vp The test volumes of DUNGS double sole-noid valves and MultiBlocs are specified inthe following table.

Individual solenoid valves and pipe work

4FRS V1 V2

Pa Vp

GW VDK= Pa/2

5FRSV1 V2

Pe Vp

GW VDK= Pe/2


Gas pressure control upstream of the gas valves

t2 = t4 = Pa • Vp • 3/Qp t2 = t4 = Pe • Vp • 3/Qp

Test volume (dm 3)Threaded connection Rp Flange connection DN1 11/4 11/2 2 21/2 40 50 65 80 100 125 150 200

Solenoid valvesMV…2/5… 0,2 0,5 0,9 1,3 0,7 1,2 2,0 3,8 6,5 12,5 17,7 46,0

Pipe workVolume dm3/m 0,5 0,9 1,3 2,0 4,0 1,3 2,0 3,3 5,0 7,9 12,3 17,7 31,4


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Relay or contactor terminalsIf a relay or contactor is connected tothe output terminals

26 Gas / oil indication27 Operation message29 Load reversal point30 Fault message,

then the matching RC combinationmust be provided for these compo-nents.

RS-232 interfaceIf the RS-232 interface or the controlunit is not used, the connectors mustbe sealed with the designated pro-tective caps.The connected PC is required to havea GS mark of conformity.

General notes and installation instructions

Pressing the „M“ or „P“ keys dur-ing operation

If the „M“ or „P“ key is pressed dur-ing the burner operation phase,

the relevant LED flashes but the pro-gram points of levels 0, 1, 2 and 3 arenot selected.

If the „M“ or „P“ key is pressed byaccident during operation,

the operating keymust be pressedimmediately .

The LED of the „M“ key or „P“ key thenstops flashing.

If this is not done, the burner remainsin „M“ mode or „P“ mode after an„OFF“ command is issued. Theburner cannot be restarted until the„Operation“ key is pressed .

M P

Changing settingsOn completion of each setting, thechanged curves must be retested:GAS —> Test gas curve „i“ in

Level 2OIL —> Test oil curve „i“ in

Level 2



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Functional description of the serialinterface (RS 232)A PC can be connected to the serialinterface during the setting phase ofthe BCS 300 (Level 2) .

During the operation phase, a proc-ess control system can be connectedvia the RS 232-interface. The processcontrol system can retrieve or sendinformation from the BCS 300.

None of the data interchanged is rel-evant to safety.

The data interchange will be de-scribed in a separate protocol (onrequest). The connection to a proc-ess control system will be describedin greater detail in the following.

Settings of theRS 232 interface• Transfer rate: 2400 Baud• NO PARITY• 1 start bit• 1 stop bit• 8 data bit• no hand-shake• max. distance: 15 m

Settings of the BCS 300• Setting: controller type 2

(run-on controller)• Input of terminal 1 (Burner ON)

must remain open• Input of terminal 2 (Fuel selection)

must remain open• During the setting phase, the

connection must be broken(unplug interface connector )

Data interchangeProcess control system to BCS300The data from the process controlsystem are:• controller values (1…100)

1 = Min. load100 = Max. load

• Fuel type selection (gas or oil)• Burner ON (burner ON or OFF)

The input data should be sent cycli-cally, e.g. every 15 s.Each message is mirrored immedi-ately by the BCS.If no reply is sent within 1 second, themessage must be repeated afterapprox. 1 s. (shutdown of BCS in >30 s with error code 47)

Data interchangeBCS 300 to the process control sys-temAll incoming messages are immedi-ately mirrored to the process controlsystem. This procedure allows theprocess control system to check theconnection to the BCS.

If a change of state occurs (e. g. fault),the BCS immediately sends a mes-sage to the process control system.

The following information is sent to theprocess control system:• Mirroring of Input data• Operating states• Fault• Flame intensity.


RS 232

BCS 300

RS 232

Process controlsystem

<---->15 m

Modem by-pass cable


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Technical data of BCS 300

Operating voltage 230 V (+10%/-15%)Frequency 50...60 HzClass of protection as per VDE 0660. EN 493-1Electrical switching cycles as per EN 298Mechanical switching cycles as per TRD 604Contact rating 3.15 A as per EN 298Analog input load impedance 25 OhmBack-up fuse max. 10 A (slow-acting)Equipment fuse 6.3 A (slow-acting)

0.1 A (slow-acting)Interference immunity EN 298Emission EN 50011 Class A, 150 kHz - 1 GHz

Max. permissible ambient temperatures Storage - 20°C … + 70°C Operation 0°C … + 60°C

Degree of protection provided by enclosure (EN 60529)BCS basic unit Enclosure IP 40, terminals IP 20Display and control unit Enclosure IP 54, terminals IP 20BCS-FLW 05, flame detector IP 40 must be provided by installa-tion.

Installation position: anyTerminals, withdrawable 2 x 1.5 mm or 1 x 2.5 mm

Power consumptions < 10 VABCS (incl. control unit) < 1,5 VAFLW 05

Bus topology Due to the low transfer rate, the buscan have a linear or radial configuration.

Classifications of automatic F B L L B Bburner control system

Dimensions ofBCS 300

4,2256

180

190

60

176

5

Handbediengerät PC-Daten RS 232

Ext. Vorsicherung max. 10 A flink

Max. Strombelastung

der ~(AC) 230 V Ausgänge 3,15 A

Netzspannung ~(AC) 230 V + 10 % - 15 %

Netzfrequenz 50 Hz - 6 % … 60 Hz + 6 %

Leistung unbegrenzt

Startlast < 120 kW

Sicherheitszeit < 5 s / 3 s / 1 s

Vorspülzeit 1 s … 250 s

Pmax. 5 bar

Schutzart IP 20

Zul. Umgebungstemperatur

Betrieb 0 °C … + 60 °CLagerung - 20 °C … + 60 °C

Art.-Nr. EE1023

Geräte-Nr. Muster

DIN Reg. xxxxxxxx DB

DIN-DVGW-Reg. xx.xx

für DG DB

CE-xxxx xx xxxx

Karl Dungs GmbH & Co.

D-73660 Urbach

Made in Germany

Handheld control unit

Flame detector FLW 05


ÖL

BCS

Burner

Control

System

GAS

Automatenprogramm Gasbetrieb Nr. => 1Enter Info

200

112

31

F1 F2 F3

M P

R

46

114

78

130

106

9

4,2

X 2X 1

Technical data of actuator drive SAD 15.0

Max. torque: 15 NmActuating times (at 200 Hz) 22,3 s/90°Supply voltage 230 VAC +10/-15%, 50 HzDegree of protection IP 54Shaft, flattened ø 12h8with cylindrical pin DIN 6325-4 m6 x 30Ambient temperaturefor an ON period of 50 s/5 min -20 °C to +60 °Cand in energized wait state from -10 °Cat initial startup


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Burner Control SystemActuator drives

Actuator drives SAD 15.0 – Description of stepping motorElectronic actuator driveTechnical dataAmbient conditionsConnectionSettingsZero positionDimensions

24 24 24 24 25 25 25 25

SAD 15.0


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Actuator drives SAD 15.0The electronic BCS combined controlsystem uses digitally activated step-ping motors which offer major advan-tages over conventional synchronousmotors (with feedback potentiome-ter):• Precise positioning thanks to de-

fined fuel-air steps for each pointon the curve

• Hysteresis free (backlash compen-sation through external load)

• Positioning accuracy is independ-ent of potentiometer quality andservice life.

The actuator drive consists of thestepping motor and control electron-ics.Operation and direction of rotation aresupervised by an integrated driverwithdigital feedback via an encoder disc.

Digital feedback signals• Supervision of the mechanical and

electrical systems by a two-chan-nel optical incremental encoder witha resolution of 1.0° referred to theoutput shaft (50 steps).

• Reference point for defining themechanical zero position of the out-put shaft.This reference pulse need not agreewith the zero position of the damp-er (an offset is permitted).

Electronic actuator driveThe electronics consist of a drivemodule for the stepping motor with A-B interface, components for inde-pendent supply and electronics forfeedback. The actuator drive elec-tronics are connected to the BCS and,like the BCS, are connected to linepotential.The max. length of the cable betweenthe BCS and the actuator drive is 20m.The complete system burner is re-quired to meet the applicable EMCrequirements.

Technical dataMax. torque 15 NmGear reduction ratio 745:1Actuating times (at 200 Hz) 22.3 s/90°Positioning accuracy < +/- 0.3°Direction of rotation anticlockwise towards input shaft

as seen from the zero referencemark after 90°

Angular resolution stepping motor 0.02°Rotation monitoring 1°

Backlash compensation through external load(air flow to flap, spring)Pretensioning force: 0.6 Nm

Supply voltage 230 VAC +10/-15%, 50 HzCurrent reduction 20 ms +/-30%

after last stepDegree of protection IP 54Shaft, flattened ø 12h8with cylindrical pin DIN 6325-4 m6 x 30Weight 1.50 kg

Ambient conditions during operation, storage and transportationAmbient temperature with a switch-onduration of 50 s/5 min and in energizedwait state, -20°C to +60°Cat initial startup from -10°CMoisture condensation is not permittedTransportation and storage temperature -40°C to 70°COscillatory stress 10 Hz to 58 Hz

0.075mm excursionFree fall 100 mm

Burner Control SystemServomotors


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Dimensions

Settings

Direction of rotation clockwise from zero referencemark as seen after 90°

Motor position closed (shaft in Min. position)Max. adjusting angle 90° operating range and

additional 10° adjustment range

The operating positions or load points can be set with theoperating unit. Each actuator drive can be activated indi-vidually during the setting phase.

Zero position

When attaching the stepping motor, care should be takento ensure that the drive is in the zero position (closedposition).

Connection

P1

P3

P2

NLPE

EA SA 1EB SB 2OK WD 3

GND 4AA MA 5AB MB 6

Auf

Zu

17

22

30

1

4

33,5

45,5

10,5

-0,2

ø12

h8

ø 1

8 h8

142

144

120

58

93

91

43,3

6.4

6.4

thro

ugh-

hole

for

M 6

PG 11 cable gland withearthing wire

ø 68

90°

closed open

Burner Control SystemServomotors

closed

open


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FLW 05

Burner Control SystemBCS flame detector

27282828282828292929303030303131313232

BCS flame detector system FLW 05UV flame detector module, method of operationFlame sensor QRA 53 operationFlame signal intensity measurementFlame sensor QRA 2 operationReplacement specifications for UV diodesBCS operation phase, flame supervision device UV QRA 53BCS operation phase, preventilation unit UV QRA 53BCS operation phase, frequency evaluation unit UV QRA 53BCS operation phase, flame unit QRA 53Ignition flame contact or main flame contact, method of operationIonization flame detector module, method of operationBCS flame unit ionization current of 3µABCS ignition flame contact testLight sensor flame detector module, method of operationFlame intensity measurementMonitoring for flame simulation states (outside light)BCS flame unit light sensor RAR 7Flame detector FLW 05 configuration: selection combination with main flame detector


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BCS flame detector system FLW 05The FLW 05 flame detector consistsof four separate monitoring systems(UV, ionization, light, contact) whichare• integrated in a housing• fully assembled with hardware and

supplied with voltage• selectable and configurable via the

BCS program.

The flame sensors are interrogated bythe safety computers via the CAN-buson the CAN controller, which receivesa continuous flow of information fromthe flame sensor and initiates flamedetector tests according to the select-ed configuration.Applications (mode dependent):Permanent operation• UV sensor QRA 53 (cyclic self-test)• Ionization electrode with amplifier

test• Light sensor RAR 7 (selenium

photoelement with fault-proofphotovoltage) and amplifier test

• Intrinsically safe flame detectorwhich is connected to the „IGNIT“(IGNITION) and/or „MAIN“ (MAIN)contact input.

Non-permanent operation• UV sensor QRA 2 with continuously

live UV diode (with startup supervi-sion)

Method of operation of flame sensorUV sensor QRA 53The flame sensor operates automati-cally and dynamically. As soon as UVradiation impinges on the diode, itgenerates a flame signal via the flamesignal amplifier. This signal is used todrive a stepping motor in the flamesensor. The stepping motor closes theincident light aperture and reopens itafter 200 ms. The flame signal mustbe canceled as a consequence ofthis. After the incident light apertureis released, the presence of a flameis signaled again.

UV sensor QRA 2The flame sensor operates continu-ously. The self-monitoring function isexecuted at startup only.The system, therefore, must beswitched off at least once within 24hours.

Schematic diagram

4

5

6

7

8

9

11

1-

2+

3

4

5

6

1

3

2 W020V

W020V

W020V

W020V

CL

CH

RIN

BC

S s

yste

mbu

s

GND

L1

PE

N

10

Mµ controllerwith CAN

ActivationQRA 53

Activation ofionization

Activation oflight sensor

230 VAC

Q

RA

53

1

2

3

4

5 P

E

Flame signalamplifier withfloating contactoutput

Activation ofcontacts

230 VAC

230 VACFlame signal -->

Fl.-inten. frequency -->

<-- Shutter stop

Fl.signal -->

<-- Test

Fl.signal -->

<-- Test

V1 B0241

V2 B0241

Ionizationelectrode

RAR 7

QR

A 2

-

+

+

Burner Control SystemFlame detector

Ionization electrodeThe ionization monitoring device uti-lizes the rectifier effect of a flame andis classified as fault-proof.In permanent operation, the amplifieris tested for reliable operation every10 s.The ionization flame supervision de-vice normally uses the burner nozzleas earth. For this reason, it is impor-tant to ensure good flame adhesionat the burner nozzle.The burner nozzle serves as a returnline for the ionization current and musthave a low-ohmic connection to PE.In normal system conditions, the op-posite pole -N- is connected to PEpotential.In this case, the earth terminal or PEterminal need only be connected toburner earth.If, however, an isolating or controltransformer is used to supply BCS-FLW05 with supply voltage, it is im-perative that the pole connected inplace of -N- be earthed or connect-ed to burner earth. Otherwise the ion-ization current will have no return line.Despite good flame formation andcorrect electrode positioning, no oronly a weak ionization current canflow.The material of the ionization elec-trode and its insulation must be heatresistant. The material Kanthal, incombination with a ceramic insulationlayer made of aluminium oxide, has

proved to be an effective electrodematerial. The insulation resistanceshould be more than 50 MOhm.

Light sensor RAR 7The flame sensor contains a seleni-um photoelement which generates aphotovoltage on exposure to lightand is classified as fault-proof.For permanent operation, the ampli-fier is tested for reliable operationevery 10 s.

Flame detector with contact outputThe flame detector must be fault-prooffor permanent operation as only thepart located in the BCS flame detec-tor is tested for reliable operation eve-ry 10 s.

Flame signal intensity measure-mentThe intensity of all flame sensor sig-nals (UV, ionization, light) is evaluat-ed and displayed by the BCS.This also allows remote transmissionof this data possible and a messageindicating the need for preventivemaintenance to be displayed when amin. value is undershot.


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UV flame detector moduleMethod of operationThe flame sensor, a UV – diode, is agas tube which is made electricallyconductive by UV radiation emittedfrom burner flames. As these UV di-odes are not fault-proof and can gen-erate a flame signal due to defect oraging, it is important that failure oraging of the UV diode be detectedduring the operation of flame detec-tors designated for permanent oper-ation.To detect a faulty UV diode, it is nec-essary to prevent the incidence of UVlight from the burner flame and alsoto check whether this causes the UVdiode to lose its electrical conductiv-ity.In the case of burners designed fornon-permanent operation, startupsupervision is only necessary prior toburner startup. As faulty UV diodesignited by UV light tend to remainelectrically conductive even withoutUV – light exposure, it is important thatthe flame sensor circuit remain con-nected to the supply voltage evenduring the controlled burner shut-down so that such a defect is detect-able.To be able to perform on UV flamesensors designed for permanent op-eration the cyclic test for safe shut-down after flame failure, a shutterwhich can be used to „dim“ the UVdiode is attached to the incident-lightaperture of the flame sensor.

Flame sensor QRA 53 operationIn the case of den QRA 53 flame sen-sors, the shutter is closed by the flamesignal, held shut by the built-in elec-tronics for 200 ms and subsequentlyreopened. As a result, the signalpresent at the flame signal outputmust change constantly. The BCSchecks that this change takes placewithin 1 second. If this signal changedoes not occur, a fault shutdown fol-lows.

Flame signal intensity measure-mentFor this purpose, the electric currentflowing through the UV – diode ismeasured, converted to a frequencyand transferred to the host computervia the CAN-bus. The host computerthen outputs the flame intensity as anumeric value. The cyclic test is halt-ed for a short period of time so thatthe UV current can stabilize.Monitoring for flame-simulatingstates (outside light)Fuel release and after burner shut-down.During the period from the start of thepreventilation period until fuel release,a flame signal triggers a fault lockout.It is possible to set the time after whichno flame may be present after burnershutdown. If the presence of a flameis indicated after the set time expires,a fault lockout follows.

Flame sensor QRA 2 operationUnlike QRA 53 sensors, QRA 2 sen-sors have lower resistance values. Forthis reason, the measured flame in-tensity under the same conditions isapproximately one third higher.

Replacement specifications for UVdiodesSince UV diodes are subject to ag-ing, they must be replaced in QRA 2sensors after 10,000 operating hoursat the latest.It is recommended that the QRA 53be replaced after 10,000 operatinghours at the latest. However, the cy-clic test detects critically defective UVdiodes.

BCS operational phase Flame supervision device UV QRA 53

FlameP 3.0

OFF

ON

UV currentFrequencyP 3.5

ShutteropenP 1.1

Stop (open)

running

typ. 0,5 s

> 0,2s<0,8s

Flame OFF

Normal Fault case 1

Shutter too fast,more than 12pulses within 0.8 s

Fault case 2

Flame failure

Fault case 3

Shutterdefective,does not close

Operation

MeasureUV current

Fault case 4

Flame failureduringmeasurementcycle

>1s >1s



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FlameP 3.0

OFF

ON

FrequencyP 3.5

15 ms 10 s

t 1 t 2 t 3

t

t

t1 = Start (flame intensity)t2 = End of frequency measurementt3 = Start of next measurement cycle


BCS operational phase Flame unit QRA 53

FlameP 3.0

OFF

ON

UV currentFrequency

TestShutterP 1.1

Stop

running

Flame OFF

0,8

Transientresponse

Cancel

1,6 2,4 3,2 4,0 14 14,8 15,6 16,2

CountNoevaluation

t s

BCS operational phase Frequency evaluation UV QRA 53

FlameP 3.0

OFF

ON

UV currentFrequencyP 3.5

ShutteropenP 1.1

Stop (open)

runnning

Fault

Outside light during preventilation period

2. Wechsel —> Fault

BCS operation phase preventilation UV QRA 53


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Ignition flame contact or mainflame contact, method of operationThe complete input circuit is checkedevery 10s if a flame is present.If the flame signal is not canceledwithin 13 ms (typical value 0.5 ms),the system interlocks (fault message:„KT ignition flame present“ or „KTmain flame present“). This test is per-formed once for the A computer andthen for the B computer.

Ionization flame detector moduleMethod of operationThe actual flame sensor circuit - theionization process - utilizes the elec-trical conductivity of the hot plasmaof a flame. If the electrodes are ar-ranged accordingly, a rectifier effectoccurs making this arrangementpractically fault-proof. Burners de-signed for permanent operation incombination with fault-proof, self-monitoring flame detectors, therefore,only require that the amplifier modulebe tested cyclically during operation.For this purpose, the BCS flame de-tectors store the actual effective sig-

t1 = Flame must be present. Start of test mode (for A computer)t2 = Flame OFF. End of test mode (for A computer)t3 = Flame must be present. Start of test mode (for B computer)t4 = Flame OFF. End of test mode (for B computer)The test is performed every 10s if a flame is present!

t1 = Initial flame formation after burner startupt2 = Flame amplifier test. The flame must have logged off prior to t3 otherwise a fault message is displayed (ION

flame logoff) and the system interlockst3 = Start of flame logon period or start of intensity measurement up to first edge change (flame P 3.3)t3 = Possible flame logon period (depending on intensity)t4 = Flame must be present otherwise a fault message is displayed (ION test flame missing, system locked out)t5 = Start of next measurement cycle


FlameP 3.2

OFF

ON

Main flamecontact testP 1.7

500 µs

t 1 t 2 t 3

t

t

OFF

ON

500 µs

t 4

BCS test, ignition flame contact

nal (the DC ionization current) in acapacitor. This capacitor is repeatedlydischarged during the cyclic test. Thefollowing charging period, duringwhich the ionization current chargesthe capacitor up to the responsethreshold of the flame signal amplifi-er, serves as a gauge of flame inten-sity.The flame detector computer controlsand monitors this process. The com-plete operation must take place with-in defined time windows. If flame in-tensity is high, the charging cycle isrelatively short. If intensity is low, thecharging cycle takes longer. The

complete operation takes place with-in max. 1s.Charging time at lowest flame inten-sity (smallest ionization current) isapproximately 700 ms. At high flameintensity, the charging cycle takesapprox. 50 ms. The default setting is350 ms and corresponds to an ioni-zation switch-off current of approxi-mately 3 µA. The switch-off currentcan only be changed by replacing theE-PROMS which are used to definethe time window. The cyclic self-test,and hence also the flame intensitymeasurement, is performed every 10sduring operation with flame.

FlameP 3.3

OFF

ON

TestIONP 1.3

10 s

t 1 t 2 t 3

t

t

OFF

ON

110 ms

t 4 t 5t 3

375 ms 10 s

BCS flame unit ionization current of 3 µA


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Light sensor flame detector moduleMethod of operationThe actual flame sensor – a seleniumphotoelement - generates from thelight of the burner flame a photovolt-age which is used to activate an op-eration amplifier. As open circuits,short circuits or poor insulation resist-ance cannot generate photovoltage,this type of flame sensor is classifiedas fault-proof. Burners designed forpermanent operation, therefore, onlyrequire that the amplifier module betested cyclically during operation.For this purpose, the BCS flame de-tectors repeatedly short out the actu-al effective signal - the photovoltage- at the input of the flame signal am-plifier by means of cyclic tests in or-der to test the following flame signalamplifier, which must repeatedly in-dicate „Flame OFF“ during thesetests. The flame detector computercontrols and monitors this process.The complete test - short-circuiting ofthe photovoltage, „Flame OFF“ indi-cation, elimination of short circuit andindication of „Flame present“ - musttake place within 1 second. Thesetests are are performed every 10s.Since – the flame is required to logon and off within 1s during the test, avoltage of at least 120 mV is requiredfor actual operation so that the flamecan log on within the required periodof time.

Flame intensity measurementThe level of the photovoltage is de-pendent on the lightness of the lightof the burner flame impinging on thelight sensor.The amplified photovoltage can beeasily converted to a digital signal viaan analog-to-digital converter anddisplayed by the computer.

Check for flame-simulating states(outside light) prior to fuel releaseand after burner shutdownThe response sensitivity of the flamesignal amplifier is approximately 1.5µA. In other words, ionization currentsof approximately 1.5 µA or higher trig-ger a flame signal within 1s if thecharging time measurement functionis inactive.This applies to the period from thestart of preventilation until fuel releaseand leads to a fault lockout if a flamesignal is generated. It is possible toset the time after which no flame maybe present after burner shutdown. Ifthe presence of a flame is indicatedafter the set time expires, a fault lock-out follows

Check for flame-simulating states(outside light) prior to fuel releaseand after burner shutdownThe switch-on sensitivity of the flamesignal amplifier corresponds to a lightsensor voltage of 100 mV. Switch-offsensitivity is 90 mV. This correspondsto a luminous intensity of approxi-mately 50 Lux of the RAR7 sensor.The flame supervision phase beginswith the preventilation period andends with fuel release when the burn-er is started.Additional flame simulation supervi-sion takes place at a defined time af-ter burner shutdown.

The following rule applies to both cas-es:If a flame signal is detected at thespecified times, an immediate faultshutdown follows and the system in-terlocks.



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t1 = Initial flame formation after burner startupt2 = Start of test for flame shutdownt3 = Flame signal may no longer be present otherwise a fault message is displayed

(test light „Flame present“, system interlocks)t4 = Flame must be present otherwise a fault message is displayed

(light flame missing, system interlocks)t5 = Start of next measurement cycle

BC

S s

yste

m b

us

Flam

e si

gna

lam

plif

ier

with

float

ing

con

tact

outp

ut

Ioni

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ectr

ode

- + QRA 2

X 2

L N PE230 VAC50/60 Hz

1 2 3 4 5 6

IGN

IT

WD

CL

CH

RIN

1 2 3 4 5 6 7 8 9 10 11

X 9

Main flame detector QRA 2

-

BC

S-S

yste

mbu

s

+

1 2 3 4 5 6 7 8 9 10 11

Flam

e si

gna

lam

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ier

with

float

ing

con

tact

outp

ut

Ioni

zatio

nel

ectro

de

RAR 7

X 2

L N PE PE 5 4 3 2 1QRA 53230 VAC

50/60 Hz

1 2 3 4 5 6

IGN

IT

WD

CL

CH

RIN

X 9

Main flame detector QRA 53

+

BC

S s

yste

m b

us

- +

Flam

e si

gna

lam

plif

ier

with

float

ing

cont

act

outp

ut

Ioni

zatio

nel

ectro

de

X 2

L N PE230 VAC50/60 Hz

1 2 3 4 5 6

IGN

IT

WD

CL

CH

RIN

1 2 3 4 5 6 7 8 9 10 11

X 9Main flame detector RAR 7

RAR 7+

-

BC

S-S

yste

mbu

s

+

1 2 3 4 5 6 7 8 9 10 11

Flame signalamplifier withfloating contactoutput

Ioni

zatio

nel

ectr

ode

RAR 7

X 2

L N PE PE 5 4 3 2 1QRA 53230 VAC

50/60 Hz

1 2 3 4 5 6

IGN

IT

WD

CL

CH

RIN

X 9

Main flame detector, contact 1

MA

IN

+

Flame detector FLW 05 configuration: selection combination with main flame detector


FlameP 3.1

OFF

ON

TestlightP 1.5

10 s

t 1 t 2

t

tOFF

ON

110 ms

t 4 t 5t 3

500 ms 10 s

BCS flame unit light sensor RAR 7

-

BC

S-S

yste

mbu

s

+

1 2 3 4 5 6 7 8 9 10 11

Flam

e si

gna

lam

plif

ier

with

float

ing

con

tact

outp

ut

Ioni

zatio

nel

ectr

ode

RAR 7

X 2

L N PE PE 5 4 3 2 1QRA 53230 VAC

50/60 Hz

1 2 3 4 5 6

IGN

IT

WD

CL

CH

RIN

X 9Main flame detector, ionization

- + QRA 2

+


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Burner Control SystemBasic settings

BCS softwareBasic settings in levels 0, 1, 2, 3 with the ranges „a“ up to „r“

Software structureBasic settings „a“ in level 0 without access authorizationBasic settings „b“ in level 3 GAS FIRINGCombination between input circuit ignition and main flameBasic settings „b“ in level 3 OIL FIRINGBasic settings „c“ in level 2 GAS FIRINGBasic settings „c“ in level 2 OIL FIRINGBasic settings „d“ in level 2 CONTROLLER PARAMETERSBasic settings „e“ in level 2 Modify GAS CURVE, without flame, without PCBasic settings „f“ in level 2 Modify OIL CURVE, without flame, without PCBasic settings „g“ in level 2 GAS, settings with Gas, without PCBasic settings „g“ in level 2 GAS burner settings: Gas index 1Test Basic settings „i“ in level 2Test Basic settings „g“ in level 2Basic settings „h“ in level 2 OIL, settings with oil, without PCBasic settings „g“ in level 2 OIL, burner settings: Oil Index 1Test oil curve „i“ in level 2Basic settings „g“ in level 2 Display oil curve „k“ in level 2Output controller settings „m“ in level 1Basic settings in level 2Basic settings „p“ in level 2Basic settings „r“ in level 2 CRC entriesPress „M“ or „P“ key during operation

343536-373839-4041-4243-4445-4647484950515253-54555657575859-616262s


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M P

Switch on mains voltage orsystem reset

Press M key straightafter switching on

BurnerON / OFF

for operator withoutaccess authorizationDisplay- clock/date- Hours/startups- Display test- Info PROM- Fault memory

a

Code No.for level 3

Code No.for level 2

Code No.for level 1

m b

e. g.Erase fault bufferAdjust clock time

e. g.Curve adjustmentwith/without PCCRC entryController typeselection

e. g.Automatic burner controlsystem selectionValve testTime setting

c

Press P key straight afterswitching on

System start

Start system withvalid CRC Level 0

Enter accessauthorization

Level 1 Level 2 Level 3

System startSwitch on mains voltage or activatereset

Software structure

Basic settings in level 0 „a“ without access authorization

Basic settings in levels 1,2 and 3„b...r“with access authorization only

Burner startupWithout changing setting

SET WITH PC Settings without PC

Function testInputs/outputs

Basic setting ofactuator drives

Set actuatordrives

Hours / startups

Test gas curve Display gascurve

Display oil curve Enter CRC

Controllerparameter

Delete gas curve

Delete oil curve

Modify gas curve(without flame)

Modify oil curve(without flame)

Settings with GAS

Settings with OIL

Set postventilationperiod GAS

Blower air dampersDelay time

Dwell timeIgnition position

Dwell timeController release

Load reversal

END

MODIFYPARAMETERS

BCS data to PC

Settings with GAS

PC data to BCS

Settings with OIL

Level 2

Test oil curve

System responseInput signal <4 mA

Burner Control SystemBasic setting

BCS system configurationintermittent

System programs

Leakage testavailable

Ignition valveavailable

Flame simulation supervisionafter shutdown

Setpre-ignition

Setpreventilation period

Load factory settings

Operation withgas / oil gas oil

Input circuitMain flame

Level 3

Input circuitIgnition flame

otherwise same as level 2


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Basic settings „a“ in level 0 without access authorizationSelect desired basic setting with + Enter.• Clock/date display• Hours / startups• Display test• PROM information• Fault memory

Press + key can to retrieve the indi-vidual items in the fault memory. Seesection „Fault memory“.

Burner Control SystemBasic setting

F1 F2 F3

Display test0123456789+yes-no%

Enter

F1 F2 F3

Fault memory 5Outputs Basic module 28 1 0Cancel next

F1 F2 F3

Hours / startupsGas : 280 h / 16Öil : 280 h / 16Enter

F1 F2 F3

Fault memory 5Inputs FLW-Modul 2 160Cancel next

F1 F2 F3

Clock/date Display 8:2629 / 03 / 99

Menu

F1 F2 F3

Settings CRC value

162Enter

F1 F2 F3

Fault memory 5Inputs Basic module225 0 232 12Cancel next

F1 F2 F3

PROM information1.0 | 1.0 | 2.0

Network: 3 FLW: 2Enter

F1 F2 F3

Fault memory 5Date Clock time29/03/99 06:42Cancel next

F1 F2 F3

Fault memory 5Outputs FLW-Modul

0Cancel next

F1 F2 F3

Fault memory 5Fault / internal103 122 194Cancel next


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Basic settings „b“ in level 3 with access authorization only Gas firing mode

After entering the code number, the basic data of the burner can be selected and set: preventilation period, pre-ignition, flame simulation supervision after switch-off, ignition valve, stabilization period the ignition flame.

Press key F2

Press key F2

Only if F2 was pressed.Press key F3.

min.: 0 secmax.: 30 secDefault: 2 sec



If F2 was pressed


F1 F2 F3

Enter yourCode number: 0 0 0

Ênter ^

F1 F2 F3

Set afterburn timeGas firing

10 secEnter

F1 F2 F3

Operation with:

Gas/Oil Gas OilF1 F2 F3

Set pre-purge time,gas firing! 30 sec.

Enter

F1 F2 F3

Gas ignition valveMode available?

Enter yes no

F1 F2 F3

Loadfactory settings

No yes

F1 F2 F3

Important!!Set values

will be deletedNo yes

F1 F2 F3

Stabilization timeGas firing 1 sec.

Enter

F1 F2 F3

Set pre-ignitionSet gas! 2 sec.

Enter

F1 F2 F3

Please wait!



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Basic settings „b“ in level 3 with access authorization only

Additional basic data of the burner can be selected and set:leakage test, system program for gas firing, system configuration (operation mode), input circuit of the ignition andmain flame.


F1 F2 F3

Leakage testavailable?

Enter yes no

F1 F2 F3

Test timeLeakage test

15 secEnter

F1 F2 F3

System program No. 11-2 FLW ignition gas

upstream V1Enter

Select program with + / -Note: see section „Selecting systemprograms“

F2:Choose between PERMANENTOPERATION and NON-PERMA-NENT OPERATION.

F1 F2 F3

System configurationPERMANENT OPERATION

Enter Selection

F1 F2 F3

System programGas firing mode

No. => 1Enter Info


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F2: Choose betweenNo connectionIonization (with test)UV (QRA 53)UV (QRA 2)Light (RAR 7)contact 1contact 2

Basic settings „b“ in level 3 with access authorization only Gas firing mode

Additional basic data of the burner can be selected and set:leakage test, system program for gas firing, system configuration (operation mode), input circuit of the ignition andmain flame.


F1 F2 F3

Input circuitIgnition flame

Ionization with testEnter Selection

F1 F2 F3


UV (QRA 53)Enter Selection

F2: Choose betweenIonization (with test)UV (QRA 53)UV (QRA 2)Light (RAR 7)contact 1

Depending on ignition flame selec-tion, the main flame combinationsopposite are possible.

otherwise same as level 2

Combination between input circuit ignition and main flame

Main flame QRA 53 QRA 2 ION RAR 7 Contact 1 Contact 2 Ignition flame QRA 53 x 0 + 0 + 0 QRA 2 0 x 0 0 0 0 ION + + x + + 0 RAR 7 + 0 + x + 0 Contact 1 + + + + x + Contact 2 0 0 0 0 + x No connection + + + + + +

x ➔ Ignition flame sensor = main sensor 0 ➔ Combination not approved + ➔ Approved combinations


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Basic settings „b“ in level 3 with access authorization only OIL FIRING

After entering the code number, the basic data of the burner can be selected and set: preventilation period, pre-ignition, flame simulation supervision after switch-off, ignition valve, stabilization period the ignition flame.

Press key F3.

Press key F2.

Only if F2 was pressed.Press key F3.



If F3 was pressed.


F1 F2 F3

Operation with:

Gas/Oil Gas Oil

F1 F2 F3

Load factorysettings

No Yes

F1 F2 F3

Set pre-ignition,time oil firing!

2 sec.Enter

F1 F2 F3

IMPORTANT!!Set values

will be deletedNo Yes

F1 F2 F3

Please wait!

F1 F2 F3

Set afterburn timeOil firing10 sec

Enter

F1 F2 F3

Set pre-purge time,oil firing! 30 sec.

Enter

F1 F2 F3

Enter yourcode number: 0 0 0

Ênter ^


If F2 was pressed.

F1 F2 F3

Ignition valve foroil available?

Enter Yes No

F1 F2 F3

Stabilization timeOil firing!

1 sec.Enter



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Basic settings „b“ in level 3 with access authorization only OIL FIRING

Additional basic data of the burner can be selected and set:Valve nozzle linkage, system program for oil firing, system configuration (Mode), input circuit of ignition and mainflame.

Select program with + / -

Note:see section „Selecting systemprograms“

F2: Choose between PERMANENT OPERATION and NON-PERMANENT OPERATION.

F2: choose betweenNo connectionIonization with testUV (QRA 53)UV (QRA 2)Light (RAR 7)Contact 1Contact 2

F2: choose betweenIonization with testUV (QRA 53)UV (QRA 2)Light (RAR 7)Contact 1

otherwise as per level 2


F1 F2 F3

Valve nozzle linkageavailable?

Enter Yes No

F1 F2 F3

System program No. 101-2 FLW Ignition gas

without DGEnter

F1 F2 F3


UV (QRA 53)Enter Selection

F1 F2 F3

System configurationCONTINUOUS OPERATION

Enter Selection

F1 F2 F3

Input circuit Ignition flame

Ionization with testEnter Selection

F1 F2 F3

System programOil firing

no. => 10Enter Info


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Basic settings „c“ in level 2 Modify parameters with access authorization only Gas firing mode

Additional basic data of the burner can be selected and set:postventilation period, blower air damper delay period (star delta changeover), dwell time in ignition position, dwelltime in controller release state, function test of outputs / inputs.


Star delta changeovermin.: 0 secmax.: 60 secDefault: 8 sec




F1 F2 F3

Set post-purge time for gas firing!

10 sec.Enter

F1 F2 F3

Blower air damperdelay time

8 sec.Enter

F1 F2 F3


10 sec.Enter

Outputs are set if F3 is pressed.

Outputs:Fuel indication, blower motor, oilpump motor, load reversal point, ig-nition transformer for gas firing, sole-noid valve DG, ignition gas solenoidvalve, safety valve, main valve, sup-ply and return solenoid valves, sta-tus indication, ignition transformer foroil firing.

If F2 was pressed.

Selection of outputs

Use F2 to choose between low loadand interlock

F1 F2 F3

System responseInput signal < 4 mALow loadEnter Selection

F1 F2 F3

Important!!Shut off fuelsupply line!

Enter

F1 F2 F3

Test of outputsFuel indication

End Test

F1 F2 F3


10 sec.Enter

F1 F2 F3

Function test ofoutputs / inputs

No Yes

F1 F2 F3

Load reversal pointIndex: > 1 OpenIndex: > 1 ClosedEnter Selection


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Basic settings „c“ in level 2 with access authorization only Gas firing mode

Additional basic data of the burner can be selected and set:basic setting of the actuator drives, test actuator drives and define adjustment ranges, hours and startups.


The symbol „ | „ is displayed aslong as the motor is running.Actual: momentary position of the

motorKey F3: motor in MAX. positionKey F2: choose between GAS

motor or AIR motor

Wenn F2 gedrückt wurde.

Actual: modify motor adjustmentrange.

Example: 4600 increments.max: maximum adjustment range

of motor according. toman-ufacturer specifications.

Use F2 to choose between theactuator drives for GAS and AIR.

Input selection:

Inputs:Burner ON, fuel prelim., oil safetychain, air pressure switch, ignitionflame, main flame, Gas min., Gasmax., Gas VDK, heavy oil release.Analog input 0…20 mA.

Use F2 to choose between theactuator drives for GAS and AIR.

Motor ramps up

Motor ramps down

Feedback signals are not evaluated.

F1 F2 F3

Input testBurner ON

Input state: ONEnde

F1 F2 F3

Define gasadjustment range

Actual: 4800 | max.: 4800End Selection

F1 F2 F3

Set actuatordrives

No Yes

F1 F2 F3

Setactuator drives

No Yes

F1 F2 F3

Test actuator drivesGAS

Actual: 0 | max.: 4800End Selection max.

F1 F2 F3

Hours / startupsGAS : 3010 h / 240OIL : 310 h / 30

Enter delete

F1 F2 F3


GASEnter Selection


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Basic settings „c“ in level 2 Modify parameters with access authorization only OIL FIRING

Additional basic data of the burner can be selected and set:postventilation period, blower air damper delay period (star delta changeover), dwell time in ignition position, dwelltime in controller release state, function test of outputs / inputs.

Outputs are set if F3 is pressed.

Outputs:Fuel indication, blower motor, oilpump motor, load reversal point, ig-nition transformer for gas firing, sole-noid valve DG, ignition gas solenoidvalve, safety valve, main valve, sup-ply and return solenoid valves, sta-tus indication, ignition transformer foroil firing.


Star delta changeovermin.: 0 secmax.: 60 secDefault: 8 sec



Selection of outputs

Select all the following time settingvalues with


F1 F2 F3


10 sec.Enter

F1 F2 F3

Load reversal pointIndex: > 1 OpenIndex: > 1 CloseEnter Selection

Use F2 to choose between low loadand interlock

F1 F2 F3

System responseInput signal < 4 mALow loadEnter Selection

Wenn F2 gedrückt wurde.

F1 F2 F3

Important!!Shut off

fuel supply line!Enter

F1 F2 F3

Test ofoutputs message

End Test

F1 F2 F3


10 sec.Enter

F1 F2 F3

Set post-purge time for oil firing!

10 sec.Enter

F1 F2 F3

Blower air damperdelay time

8 sec.Enter

F1 F2 F3

Function test ofoutputs / inputs

No Yes


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Basic settings „c“ in level 2 with access authorization only OIL FIRINGAdditional basic data of the burner can be selected and set:basic setting of the actuator drives, test actuator drives and define adjustment ranges, hours and startups.

with F2 choose between the actua-tor drives for GAS, oil and air

Motor ramps up

Motor ramps down

Feedback signals are not evaluated.

The symbol „ | „ is displayed aslong as the motor is running.Actual: momentary position of the

motorKey F3: motor in MAX. positionKey F2: choose between OIL motor

or AIR motor

If F2 was pressed.

Actual: modify motor adjustmentrange.Example: 4600 increments.

max: maximum adjustment rangeof motor according. tomanufacturer specifica-tions.

Use F2 to choose between theactuator drives for OIL and AIR.

Input selection:

Inputs:Burner ON, fuel prelim., oil safetychain, air pressure switch, ignitionflame, main flame, Gas min., Gasmax., Gas VDK, heavy oil release.Analog input 0…20 mA.


F1 F2 F3

Setactuator drives

No Yes

F1 F2 F3


OILEnter Selection

F1 F2 F3

Define oiladjustment range

Actual: 4800 | max.: 4800End Selection

F1 F2 F3

Hours / startupsGAS : 3010 h / 240OIL : 310 h / 30

Enter delete

F1 F2 F3

Setactuator drives

No Yes

F1 F2 F3

Input testBurner ON

Input state: ONEnde

F1 F2 F3

Test actuator drivesOIL

Actual: 0 | max.: 4800End Selection max.


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Basic settings „d“ in level 2 with access authorization only

CONTROLLER parameter: selection of controller type, sensor actual values, pressure range.The following screens only appear when „Default controller“ is selected.

If F2 was pressed.


F1 F2 F3

ParametersLoad

factory settingsNo Yes

F1 F2 F3

Please wait!

Selection:Standard controllerRun-on controller

Use F2 to choose betweenTEMPERATUREPRESSURE

F1 F2 F3

ParametersController type: 1

Enter Info

F1 F2 F3

Please select:Controller parameter

Enter

F1 F2 F3

Controller parametersSensor actual value

TEMPEnter Selection


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Basic settings „d“ in level 2 with access authorization only

CONTROLLER parameters: system response, switching difference, setpoint adjustment,Kp value, Tn value, Tv value, neutral zone PID.

All setting values can be incrementedor decremented by 10 with the F2 andF3 key or by 1 with the +/- key.


F1 F2 F3

Controller parameterDistance

2Enter -10 +10

F1 F2 F3

Controller parameter 20 mA corresponds

to 250Enter -10 +10

F1 F2 F3

Controller parameterTn

30,0 secEnter -10 +10

F1 F2 F3

Controller parameterSetpoint 1:

90Enter -10 +10

F1 F2 F3

Controller parameterTv

1 secEnter

F1 F2 F3

Controller parameterKp10

Enter -10 +10

F1 F2 F3

Controller parameterNeutral zone PID

1Enter -10 +10

F1 F2 F3

Controller parameterSwitching difference

5Enter -10 +10

F1 F2 F3


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Basic settings „e“ in level 2 only with access authorization without PC

Modify GAS CURVE, without flame


Fuel:

Enter by pressing the P key

M P

After F1 is pressed, the desiredindex appears:

Note: entry into table after leavingthe ignition position

Use F2 to select all indices:1, 10, 20, ……… 100.

F1 F2 F3

Please select:Set without PC

Enter

F1 F2 F3

Gas index: 30Fuel : 980 P = EnterAir : 1030+ / - L - L +

F1 F2 F3

Enter output40 %

Enter

F1 F2 F3

First indexafter ignition

1Enter

F1 F2 F3

Set without PCModify gas curve(without flame)

Enter Back

F1 F2 F3

Gas index:: 30Modify

Enter Select Cancel


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Basic settings „f“ in level 2 only with access authorization without PC

Modify OIL CURVE, without flame


M P

After F1 is pressed, the desiredindex appears:

Fuel:


Note: the program enters the tableafter leaving the ignition position

Use F2 to select all indices:1, 10, 20, ……… 100.

F1 F2 F3


Enter

F1 F2 F3

Oil index: 30Fuel : 980 P = EnterAIR : 1030+ / - L - L +

F1 F2 F3

Enter output40 %

Enter

F1 F2 F3

Set without PCModify oil curve(without flame)

Enter Back

F1 F2 F3

Oil index:30Modify

Enter Select Cancel

F1 F2 F3


1Enter


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Basic settings „g“ in level 2 with access authorization without PC only

Settings with gas: purge position, ignition point, full load /100% to min. load.

To ignite, press the P key

M P


Pre-purge time30 sec

F1 F2 F3

Pre-purge time

Zero adjust, motors

M P

Preventilate with the P key

Fuel:

F1 F2 F3

Pre-purge time

F1 F2 F3

Pre-purge time30sec.

Actuator > running

F1 F2 F3

Set ignition point

Actuator > ignition

Ignition

Flame signalreceived!

F1 F2 F3

Gas index: 100Fuel: 3200 P = EnterAir : 2700+ / - L - L +

Fuel:


M P

F1 F2 F3

Save point ?

Yes No

F1 F2 F3


Enter

F1 F2 F3

Set purge pos.Fuel : 290 P = ventAir : 250+ / - L - L +

F1 F2 F3

Set ignition pointFuel: 320 P = ignitionAir : 270+ / - L - L +

F1 F2 F3

Set without PCSet with gas

Enter Back


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GAS burner settings: Gas index

M P

Fuel:

M P

Repeat with gaz index80, 70, 60, 50, 40, 30, 20, 10 und 1.

F1 F2 F3

Enter output:100 %

Enter

F1 F2 F3



Fuel:

F1 F2 F3

Save point ?

Yes No

F1 F2 F3

Enter output:85 %

Enter

F1 F2 F3


1Enter

Post-purge time

F1 F2 F3

Please wait!

F1 F2 F3


F1 F2 F3

Save point ?

Yes No

F1 F2 F3

Enter output: 14 %

Enter


F1 F2 F3

Zero adjust, motors



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Test GAS CURVE „i“ in level 2

Key „F3“ is pressed:

Key F 2 can be used to choose be-tween deficiency of air and fuel sur-plus.Note: only the fault is tested here, notthe accuracy of the network (damperblocked, cable breakage etc.).The point on curve must be selectedwith sufficient air surplus to prevent ahazardous situation arising when theburner is switched off.


Pre-purge time

F1 F2 F3

Pre-purge time5 sec

Actuator > running

F1 F2 F3

Pre-purge time

Zero adjust, motors

F1 F2 F3

Ignition position

Actuator > ignition

F1 F2 F3

Gas index: 21Fuel : 1500Air : 1800OFF Test Motor

F1 F2 F3

Please select:Test gas curven

Enter

F1 F2 F3


F1 F2 F3

Motor limit valuesDeficiency of air

Enter Select Cancel

Ignition


The complete, set curve can beexecuted by pressing + / -.

It is not possible to modify a curvehere.

The motor ramps down slowly. Afault is simulated.

Limit reached. The system wouldswitch off during operation. After theF3 key is pressed, the air motor re-turns to the correct position.

F1 F2 F3


Alarm Cancel

F1 F2 F3


Test running Cancel


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Basic settings „g“ in level 2 with access authorization without PC onlyGAS burner settings: Gas index 1


Display GAS CURVE „k“ in level 2

Use F2 and F3 to display the gastable (index)Index 101 —> ignition positionIndex 102 —> purge position

F1 F2 F3

Gas index: 21Fuel : 1500Air : 1800OFF Test Motor

F1 F2 F3

Post-purge time

F1 F2 F3

Zero adjust, motors

F1 F2 F3

Please select:Display gas curve

Enter

F1 F2 F3

GAS TABLEIndex after ignition

1End + -

F1 F2 F3

GAS TABLEInd | Bren | Air | Lei | Pk10 | 320 | 270 | 10 | *End + -


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Basic settings „h“ in level 2 with access authorization without PC only

Settings with oil: purge position, ignition point, full load /100% to min. load.


F1 F2 F3

Set purge pos.Fuel : 290 P = ventAir : 250+ / - L - L +

M P

Preventilate with the P key

Fuel:

F1 F2 F3

Set without PCSet with OIL

Enter Back


F1 F2 F3

Set ignition point

Actuator > ignition

F1 F2 F3

Set ignition pointFuel : 320 P = ignitionAir : 270+ / - L - L +

Ignition

F1 F2 F3

Oil index: 100Fuel : 3200 P = EnterAir : 2700+ / - L - L +

F1 F2 F3

Save point ?

Yes No


M P

To ignite, press the P key

M P

F1 F2 F3


Enter

Fuel:

F1 F2 F3

Pre-purge time

Zero adjust, motors


Pre-purge time

F1 F2 F3


Actuator > running


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M P

F1 F2 F3


F1 F2 F3

Save point ?

Yes No

Basic settings „h“ in level 2 with access authorization without PC only

Settings with oil: purge position, ignition point, full load /100% to min. load.


F1 F2 F3

Enter output:100 %

Enter

Fuel:Repeat with oil index:80, 70, 60, 50, 40, 30, 20, 10 und 1.

F1 F2 F3

Enter output:85 %

Enter


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OIL burner settings: Oil Index 1


M P

Fuel:


Post-purge time

F1 F2 F3


F1 F2 F3

Save point ?

Yes No

F1 F2 F3

Enter output 14 %

Enter

F1 F2 F3

Please wait!

F1 F2 F3


1Enter

F1 F2 F3

Zero adjust, motors


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Test OIL CURVE „i“ in level 2


F1 F2 F3

Please select:Test oil curve

Enter

key „F3“ is pressed:

Key F 2 can be used to choose be-tween deficiency of air and fuel sur-plus.Note: only the fault is tested here, notthe accuracy of the network (damperblocked, cable breakage etc.).The point on curve must be selectedwith sufficient air surplus to prevent ahazardous situation arising when theburner is switched off.

Pre-purge time

F1 F2 F3

Pre-purge time

Zero adjust, motors

F1 F2 F3

Pre-purge time5 sec

Actuator > running

The complete, set curve can beexecuted by pressing + / -.

It is not possible to modify a curvehere.

F1 F2 F3


F1 F2 F3

Oil index: 21Fuel : 1500Air : 1800OFF Test Motor

F1 F2 F3


Enter Select Cancel

Ignition


F1 F2 F3

Ignition position

Actuator ignition

The motor ramps down slowly. Afault is simulated.

Limit reached. The system wouldswitch off during operation. After theF3 key is pressed, the air motorreturns to the correct position.

F1 F2 F3


Test running Cancel

F1 F2 F3


Alarm Cancel


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OIL burner settings: Oil Index 1 Display OIL CURVE „k“ in level 2

Use F2 and F3 to displaythe oil table (index)

Index 101 —> ignition positionIndex 102 —> purge position


F1 F2 F3

Öil index: 21Fuel : 1500Air : 1800OFF Test Motor

F1 F2 F3

Please select:Display oil curve

Enter

F1 F2 F3

Zero adjust, motors

F1 F2 F3

Set clock/date 11:44 24 / 03 / 99 ^^ ^^ +1 Start

Output controller settings „m“ in level 1 with access authorization only

Erase FAULT MEMORY, set CLOCK/DATE.

Use F2 and F3 to man adjust clock/date.

F1 F2 F3

Set clock/date

No Yes

F1 F2 F3

Delete faultmemory

No Yes

F1 F2 F3

OIL TABLEInd | Bren | Air | Lei | Pk10 | 320 | 270 | 10 | *End + -

F1 F2 F3

OIL TABLEIndex after ignition

1End + -

F1 F2 F3

Post-purge time


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Basic settings in level 2 with access authorization only with PC

PC DATA transfer „n“


F1 F2 F3

Please select:PC —> BCS data

Enter Back

File is loaded from PC.

Find data on PC and load.

F1 F2 F3

Load BCS data18 %

Cancel

F1 F2 F3

BCS datasuccessfully loaded

Enter

F1 F2 F3

Load BCS dataPlease wait!

Cancel

F1 F2 F3

Load BCS data

Cancel


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Data are loaded into the PC

F1 F2 F3

BCS datasuccessfully sent

EnterPre-purge time

F1 F2 F3

Set with PCSet with gas

Enter Back

Pre-purge timeZero adjust, motors

F1 F2 F3

Send BCS data

Cancel

F1 F2 F3

Please select:BCS —> PC data

Enter Back

Basic settings in level 2 with access authorization only with PC

BCS DATA transfer „o“ GAS burner settings „p“

F1 F2 F3

wait for PC

Cancel

F1 F2 F3


If „rinsing“ (Purge) button on PC ispressed.

F1 F2 F3


Cancel

F1 was pressed. Ignition via BCSonly (not from PC).

If „Zünd“ (Ignition) button on PC ispressed.

The ignition point can be set.

Ignition

F1 F2 F3

Pre-purge time0 sec

Cancel

F1 F2 F3

Set ignition point

Ignition



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The ignition point can be setF1 was pressed. Ignition via BCSonly (not from PC).

Pre-purge time

Zero adjust, motors


Ignition

F1 F2 F3

wait for PC

Cancel

Basic settings „p“ in level 2 with access authorization with PC only

OIL burner settings „q“


The gas curve can now be testedand set via the PC.If F1 is pressed:

F1 F2 F3

Setting phase, gasIntensity: 5

OFF

F1 F2 F3

Post-purge time

F1 F2 F3


Pre-purge time

If „rinsing“ (Purge) button on PC ispressed.

F1 F2 F3

Set ignition point

Ignition

F1 F2 F3

Set with PCSet with OIL

Enter Cancel

F1 F2 F3

Pre-purge time0 sec

Cancel

F1 F2 F3


Cancel


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The oil curve can now be testedand set via the PC.If F1 is pressed:

F1 F2 F3


F1 F2 F3

Setting phase, oilIntensity: 4

OFF

F1 F2 F3

Post-purge time

Basic settings „p“ in level 2 with access authorization with PC only

OIL burner settings „q“



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Basic settings „r“ in level 2 with access authorization only

CRC entries

Note:

The values in a line must always be equal.

Left-hand value calculated by systemRight-hand value stored value since last transfer

Settings CRC over the safety relevant settings of the system

Gas curve CRC over the complete gas curve

Oil curve CRC over the complete oil curve


If the „M“ key or „P“ key is pressedduring the burner operation phase,

the relevant LED flashes without theprogram points of levels 0, 1,2 and3 being selected.

M P

Pressing keys „M“ or „P“ during operation

If the „M“ or „P“ key is pressed byaccident during operation, the oper-ating key must be pressed immedi-ately .

The LED of the „M“ key or „P“ key thenstops flashing.

If this is not done, the burner remainsin „M“ mode or „P“ mode after an„OFF“ command is issued. Theburner cannot be restarted until the„Operation“ key is pressed .

If the values are not equal, pressSave.

F1 F2 F3

Please select:Enter CRC

Enter

F1 F2 F3

Settings 90 | 90Test gas curve 80 | 80Show oil curve 89 | 89Enter Save


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Burner Control Systemoutput controller

BCS output controller

100

Tem

per

atur

e/p

ress

ure

%of

fina

l val

ueBaseload 0 4 10 20 mA

Controller types 1 + 2 standard controller, run-on controllerBurner ON/OFF functions for standard controller

6465


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Controller type 1Settings as standard controller

• Sensor actual value(TEMP / PRESSURE)

• Output control input• Sensor adaptation at 20 mA

(corresponds to e.g. 250°C)• Switching difference Setpoint• Distance Setpoint• Setpoint 1• Kp range

Gain, P proportion• Tn I proportion• Tv D proportion• Neutral zone I (PID)

Favourable setting values:

100

Tem

per

atur

e/p

ress

ure

%of

fina

l val

ue

Baseload 0 4 10 20 mA

Input: Output controller

Controller type 2Settings as run-on controller :• Base load 4 mA• Full load 20 mA

(not variable)• System response

Input signal < 4 mALow load or lockout

ON/OFF function via control switch,Input terminal: Control chain

4

19

20

externaltransmitter

BCSInput Terminal:

Control chain

Output control4…20 mAGND

e.g. of sensor e.g. of external controller

BCS output controllerTwo controller types can be selected:

• Controller type 1:standard controller

• Controller type 2:run-on controller

The input current is 4…20 mA. The en-try „System response to input signal <4 mA“ defines how the BCS respondsto an input signal less than 4 mA.• The controller ramps up to low load.

The system interlocks.

100

Bur

ner

outp

ut in

%

0 4 10 20 mA

Output control input

Baseload

Burner Control SystemOutput controller


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Burner Control SystemOutput controller

Burner ON/OFF functions for standard controller

Switching difference The switching difference is the totaldifference above and below thesetpoints.

ON/OFF point, symmetrical Example of a symmetrical ON/OFFpoint:Setpoint 90°C,Switching difference 10 K,Switch-off point 5K above setpointmeans:• Switch off at 95°C• Switch on at 85°C

ON/OFF point, asymmetrical upwards Example of an asymmetrical ON/OFFpoint:Setpoint 90°C,Switching difference 10 K,Switch-off point 8K above setpointmeans:• Switch off at 98°C• Switch on at 88°C

ON/OFF point, asymmetrical downwards Example of an asymmetrical ON/OFFpoint:Setpoint 90°C,Switching difference 10 K,Switch-off point 3K above setpointmeans:• Switch off at 93°C• Switch on at 83°C

Setpoint

ON OFF

Setpoint

Actual value20°C 120°CSwitching difference

Setpoint

ON OFF

Setpoint

Actual valueDistance toswitch-off point

20°C 120°C

Setpoint

ON OFF

Setpoint

Actual valueDistance to switch-off point,upwards

20°C 120°C

Setpoint

ON OFF

Setpoint

Actual valueDistance to switch-off pointdownwards

20°C 120°C


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BCS fault list, operating system fault code 01…33BCS fault list, operating system fault code 34…65BCS fault list, user program fault code 100…125Read out fault memoryFault memory inputs of the basic moduleFault memory inputs of the flame detector modeFault memory outputs of the basic moduleFault memory outputs of the flame detector modeDisplay safety computers 1 and 2List of numbers

BCS fault memory

67686970717272737374

Burner Control SystemErase fault memory


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BCS fault listThere are two types of fault:operating system faults and user program faults

A= lockout after startupB= lockout


Error code

01 A Error codeDuring RAMTEST_1, no difference was found when comparing RAM_1 and RAM_2 . 02 B During RAMTEST_1, the identifier of RAM_1 was not found. 03 B During RAMTEST_1, the identifier of RAM_2 was not found. 04 B During RAMTEST_1, a difference between RAM_1 and RAM_2 was detected (apart from RAMKENNUNG). 05 B During RAMTEST_2, RAMTEST_3, RAMTEST_4 or RAMTEST_5, the identifier of RAM_1 or RAM_2 was not

found. 06 B During RAMTEST_6, RAMTEST_7, RAMTEST_8 or RAMTEST_9, the identifier of RAM_1 or RAM_2 was not

found. 07 B During RAMTEST_6, RAMTEST_7, RAMTEST_8 or RAMTEST_9, the value obtained from RAM_1 or RAM_2 is incorrect. 08 B During RAMTEST_10, the identifier of RAM_1 was not found. 09 B During RAMTEST_10, the identifier of RAM_2 was not found. 10 B During RAMTEST_11, the identifier of RAM_1 was not found. 11 B During RAMTEST_11, the identifier of RAM_2 was not found. 12 B During the PROMTEST, the signature does not match the PROM contents. 13 B CPUTEST faulty. 14 B No more free cells available. 15 B Identifier (basic computer 1 or 2) is not explicit. 19 B More than 5 restarts during the start phase. 21 B Watchdog fault. K1 or K2 picked up during the start phase. (system voltage 24V) 22 B Watchdog fault. Fault in the safety chain during the start phase. 23 B Watchdog fault. Quick shutdown faulty during operation. 24 B Watchdog fault. Monostable flip-flop (74123) is not executed during operation. 25 B System frequency (64 Hz) faulty. 26 B EEPROM is not writable. 27 B EEPROM signature generally faulty. 28 B The 64 Hz can no longer be checked. ( 65 ms interrupt faulty) 29 B Watchdog fault. The relay drops out during the start phase. 30 B A cyclic test was omitted. 31 B The system tests are not invoked regularly. (> 60 minutes) 32 B EEPROM signature of gas curve faulty. 33 B EEPROM signature of oil curve faulty.


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BCS – Fault list

Operating system faults

Example:Fault 49 has occurred: „Compositemodule; safety relevant outputs Testroutine 1 (software / hardware)“

see BCS fault list „Operating systemfaults“.

A= interlock after startupB= interlock


Fault code

34 A Operating system fault: ERROR_IN_VERB.35 A Operating system fault: ILLEGAL_STATE.36 A Operating system fault: ILLEGAL_VERB_CODE.37 A Operating system fault: ILLEGAL_DEV_NAME.38 A During the PROMTEST, the signature does not match the contents.40 A Dynamic test of composite module; test pattern was twice incorrect.41 A No message received from composite module.42 A Composite module; RAM test fault.43 A Composite module; EPROM fault.44 A Composite module; CPU test fault.45 A Composite module; safety relevant outputs Test routine 2. (hardware)46 A Composite module; safety relevant inputs faulty.47 A RS 232-Interface faulty > 30 s.49 A Composite module; safety relevant outputs Test routine 1. (software / hardware)50 A Dynamic test of FLW module; test pattern was twice incorrect.51 A No message received from FLW module.52 A FLW module; RAM test fault.53 A FLW module; EPROM fault.54 A FLW module; CPU test fault.55 A FLW module; non selected input has switched.60 A CAN fault (BUS-OFF, table too small).61 A Gas motor fault (zero adjust, sen. signals do not arrive orinput oscillating).62 A Oil motor fault (zero adjust, sen. signals do not arrive or input oscillating).63 A Air motor fault (zero adjust, sen. signals do not arrive or input oscillating).64 A ALIVE-MSG of network computer missing ( safety computer is not operating).65 A Motor fault (steps ).

Fault code 49

Erase fault memory


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BCS – Fault list

User program fault

Example:Fault 105 has occurred: „Air pres-sure switch, deficiency of air“.

see BCS fault list, „User programfaults“

A= interlock after startupB= interlock


Fault code plain text on display

100 A Gas pressure MAX open.102 B Heavy oil release open.103 B Flame failure.104 B Air pressure switch diid not switch during preventilation period.105 B Air pressure switch Deficiency of air.106 A Oil safety chain open.107 B Gas pressure too low. 3 attempts failed.108 A Air pressure switch Idle state check.109 A FUEL actuator drive defective. (+display of nominal and sens values)110 B Ignition flame signal present during preventilation period.111 B No main flame signal received after safety period.112 B Leakage test V1 leaky.113 B Flame simulation supervision after deactivation.114 A No ignition flame signal received after safety period.115 B Main flame signal during preventilation period116 B Stabilization period Ignition flame signal failure.117 B Controller signal < 3.5 mA120 B Boiler safety chain open.122 B Leakage test V2 leaky.123 B Ignition flame failure.124 A Actuator drive (no completion report received).125 A Air actuator drive defective. display of nominal and sens values.

Fault code 105

Erase fault memory


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The fault memory can be read out during „operation“ and in the „Burner OFF“ state (Basic settings „a“ in level 0).For each fault, all input or output states are stored.

Procedure:

F1 F2 F3

F1 F2 F3

Fault memory 5Date clock time29/03/99 06:42Cancel Next Fault memory 5

Fault / internal103 122 194Cancel Next

Press the F2 key to read out thenext fault memory.

Maximum no. of entries 10.The smallest number is the oldestentry.

Assignment of input and outputstates to the numbers:

Press + key can to retrieve theindividual items in the fault memory.

Gas

Max

. G

as M

in.

Oil

safe

ty c

hain

LD

W

— Boi

ler

safe

ty c

hain

— —

8 7 6 5 4 3 2 1

1. Get input /output mask from list of numbers2. Store input /output mask under template.

Con

trol

ler

ind

ex 1

…10

0

TemplatesInputsBasic module

Tem

plat

e fo

r 2n

d di

git

Tem

plat

e fo

r 3r

d di

git


Rel

ease

hea

vy o

il — — — — — — —

8 7 6 5 4 3 2 1

8 7 6 5 4 3 2 1

x x x x

Fue

l typ

e se

lect

ion

Gas

/Oil

VD

K

— Bur

ner

ON

— — — —

Fault memory 5Inputs Basic module 225 0 232 12

Fault No. Input/output mask8 7 6 5 4 3 2 1

0 128 x1 129 x X2 130 x X3 131 x X X4 132 x X5 133 x X X6 134 x X X7 135 x X X X8 136 x X9 137 x X X

10 138 x X X11 139 x X X X12 140 x X X13 141 x X X X14 142 x X X X15 143 x X X X X16 144 x X17 145 x X X18 146 x X X19 147 x X X X20 148 x X X21 149 x X X X22 150 x X X X23 151 x X X X X24 152 x X X25 153 x X X X26 154 x X X X27 155 x X X X X28 156 x X X X29 157 x X X X X30 158 x X X X X31 159 x X X X X X32 160 x X33 161 x X X34 162 x X X

8 7 6 5 4 3 2 1


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Fue

l sel

ectio

n ga

s/oi

l V

DK

— Bur

ner

ON

— — — —

Fault memory 5Inputs basic module225 0 232 12Cancel Next

All inputs of thebasic module (in the event of a fault)are stored.

The definitions of the numbers areas follows (see list of numbers).

Controller index 1 … 100

8 7 6 5 4 3 2 1

— — — Rel

ease

hea

vy o

il

— — — —

8 7 6 5 4 3 2 1

99 227 x x x x x x100 228 x x x x101 229 x x x x x102 230 x x x x x103 231 x x x x x x104 232 x x x x105 233 x x x x x106 234 x x x x x

Gas

Max

.

Oil

safe

ty c

hain

LD

W

— Boi

ler

safe

ty c

hain

— —

undefinedBurner ON = onFuel selection = oilInput: VDK = closed

Note:The number range extends from 0 to 255Number range 1 = 0 to 127 —> input / output mask valid 1 to 7Number range 2 = 128 to 255 —> input / output mask valid 1 to 8

Example: number 12 Example: number 195

Fault Fault in input/output mask

No. 8 7 6 5 4 3 2 1 0 128 x 1 129 x x 2 130 x x 3 131 x x x 4 132 x x 5 133 x x x 6 134 x x x 7 135 x x x x 8 136 x x 9 137 x x x10 138 x x x11 139 x x x x12 140 x x x13 141 x x x x

Fault Fault in input/output mask

No. 8 7 6 5 4 3 2 164 192 x x65 193 x x x66 194 x x x67 195 x x x x68 196 x x x69 197 x x x x

8 invalid

8 7 6 5 4 3 2 1

93 221 x x x x x x94 222 x x x x x x95 223 x x x x x x x96 224 x x x97 225 x x x x98 226 x x x x



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Fault memory 5Inputs FLW module2 205Cancel Next

Intensity of flame signal where:

QRA53 >200 goodQRA2 >200 goodRAR7 >200 goodIONISATION <6 good

— — — — — — Igni

tion

flam

e de

tect

or M

ain

flam

e de

tect

or

Inputs of the flame detector mode (FLW module)

Fault memory 5Outputs Basic module28 1 0Cancel Next

Outputs of the basic module

8 7 6 5 4 3 2 1

Fau

lt m

essa

ge B

urne

r m

otor

, blo

wer

Mai

n va

lve

Fue

l Con

trol

ler

rele

ase

Igni

tion

valv

e S

afet

y va

lve

Fee

d/re

turn

val

ves

Noz

zle

valv

e

8 7 6 5 4 3 2 1

— — — — — — Pum

p m

otor

Igni

tion

trans

form

er, g

as fi

ring

8 7 6 5 4 3 2 1

Fue

l gas

/oil

mod

e

Fue

l bur

ner

oper

atio

n

— Igni

tion

trans

form

er, o

il fir

ing

— — — —

8 7 6 5 4 3 2 1

Burner Control SystemFault memory


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Outputs of the flame detector mode (FLW module)

Display of safety computer 1

The fault memory is deleted in level 1 „m“.

Each of the two safety computers has its own fault memory.

Display of safety computer 2

The display constantly changes between safety computer 1 (8 sec.) andsafety computer 2 (4 sec.).To deactivate the change of display, follow this procedure:

• Display for safety computer 1 onlyPress key „M“ and key „—“ simultaneously for 4 sec.

• Display for safety computer 2 onlyPress key „M“ and key „+“ simultaneously for 4 sec.

• Display for safety computers 1 and 2 onlyPress key „M“, key „—“ and key „+“ simultaneously for 4 sec.


Fault memory 5Outputs FLW module

0Cancel Next

No outputs available

— — — — — — — —

8 7 6 5 4 3 2 1



No bar at bottom right. Bar at bottom right.


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List of numbers


Fault No. Input/output mask8 8 7 6 5 4 3 2 10 128 x1 129 x X2 130 x X3 131 x X X4 132 x X5 133 x X X6 134 x X X7 135 x X X X8 136 x X9 137 x X X

10 138 x X X11 139 x X X X12 140 x X X13 141 x X X X14 142 x X X X15 143 x X X X X16 144 x X17 145 x X X18 146 x X X19 147 x X X X20 148 x X X21 149 x X X X22 150 x X X X23 151 x X X X X24 152 x X X25 153 x X X X26 154 x X X X27 155 x X X X X28 156 x X X X29 157 x X X X X30 158 x X X X X31 159 x X X X X X32 160 x X33 161 x X X34 162 x X X35 163 x X X X36 164 x X X37 165 x X X X38 166 x X X X39 167 x X X X X40 168 x X X41 169 x X X X42 170 x X X X43 171 x X X X X44 172 x X X X45 173 x X X X X46 174 x X X X X47 175 x X X X X X48 176 x X X49 177 x X X X50 178 x X X X51 179 x X X X X52 180 x X X X53 181 x X X X X54 182 x X X X X55 183 x X X X X X56 184 x X X X57 185 x X X X X58 186 x X X X X59 187 x X X X X X60 188 x X X X X61 189 x X X X X X62 190 x X X X X X63 191 x X X X X X X

8 7 6 5 4 3 2 1 Fault No. Input/output mask

8 7 6 5 4 3 2 164 192 x X65 193 x X X66 194 x X X67 195 x X X X68 196 x X X69 197 x X X X70 198 x X X X71 199 x X X X X72 200 x X X73 201 x X X X74 202 x X X X75 203 x X X X X76 204 x X X X77 205 x X X X X78 206 x X X X X79 207 x X X X X X80 208 x X X81 209 x X X X82 210 x X X X83 211 x X X X X84 212 x X X X85 213 x X X X X86 214 x X X X X87 215 x X X X X X88 216 x X X X89 217 x X X X X90 218 x X X X X91 219 x X X X X X92 220 x X X X X93 221 x X X X X X94 222 x X X X X X95 223 x X X X X X X96 224 x X X97 225 x X X X98 226 x X X X99 227 x X X X X

100 228 x X X X101 229 x X X X X102 230 x X X X X103 231 x X X X X X104 232 x X X X105 233 x X X X X106 234 x X X X X107 235 x X X X X X108 236 x X X X X109 237 x X X X X X110 238 x X X X X X111 239 x X X X X X X112 240 x X X X113 241 x X X X X114 242 x X X X X115 243 x X X X X X116 244 x X X X X117 245 x X X X X X118 246 x X X X X X119 247 x X X X X X X120 248 x X X X X121 249 x X X X X X122 250 x X X X X X123 251 x X X X X X X124 252 x X X X X X125 253 x X X X X X X126 254 x X X X X X X127 255 x X X X X X X X

8 7 6 5 4 3 2 1


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Burner Control SystemBCS startupwith PC support

BCS-Vision

767778-81

Preparatory workLoad BCS with existing curve from PCSet or modify the curve with the PC

A knowledge of burner technology is required.


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Preparatory work

• Connect PC to BCS(modem by-pass cable)jack-jack

• Switch on PC and BCS.At power-on, immediately pressthe P key on the BCS operatingconsole

several times.Entry of code number for level 2

Operate using keys F2. - and +

Use the + key to select the programitem „Einstellung with PC“ (Set with PC).

Press key F1Use the + key to select the „PC =>BCS Daten“ (PC => BCS data)

Screen if connection available.

Is no connection is available, open menu item „options“ (Options) andcheck interface selection.

Load the PC program


F1 F2 F3

Enter yourcode number: 0 0 0

Ênter ^

F1 F2 F3

Set with PC PC --> BCS Data

Enter Back

F1 F2 F3

Please select:Set with PC

Enter Backs


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The interface to the BCS can bespecified in the submenu item„Schnittstelle“ (Interface). After aselection is made, the data aresaved to the BCS.DAT file.The default setting is COM 1 (evenif the file BCS.DAT does not exist).

Press the F1 key on the BCS controlunit.

A stored file can be selected. This fileis is loaded into the main memory ofthe program and the following windowis opened.

Open file.

Load BCS with an available curve from the PC

Check he file and „Daten laden“(Load data) pushing.

After the data are loaded successfully,CRC-PC, CRC-A and CRC-B mustmatch.If not, they must be reloaded.The following display appears onthe BCS control unit :

Press the F1 key and then the + key.

F1 F2 F3

BCS datasuccessfully loaded

Enter



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Set or modify the curve with the PC

F1 F2 F3


Enter Back

Press key F1

Click the „Start“ button on the PC.The motors run to purge position.When the position is reached,„Spülposition erreicht“ (Purge positionreached) appears at the bottom left.The values for purge position can nowbe modified.Enter the new number and press „En-ter“.The CRC-PC changes. Press„Einzelwert“ (Individual value).The motor ramps up to the new posi-tion. All 3 CRCs are now identical.

Now click the mouse on the „rinsing“(Purge) button. The set preventilationperiod counts back to 0. Then clickthe „Zündposition“ (Ignition position)button. The motors ramp up to theignition position.As with the purge position previously,the ignition position can be modifiedin the fields„Zündposition“ (Ignition position). Usethe „Einzelwert“ (Individual value) keyto transfer the values to the BCS andto approach these new values with theBCS.

Burner Control SystemBCS startup withPC support


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„Zündung“ (Ignition) appears on theBCS control unit .

Press key F1 to ignite the burner (keymust be pressed for at least 1 s).

After a flame forms, the following dis-play appears:

The ignition position can be changedagain and the new values can betransferred with the „Einzelwert“ (In-dividual value) key.

An operating point (line) must be se-lected for the point of entry into thetable where the position for the airdamper matches the ignition positionmost closely.If the value is to be changed, activatethe field with a click of the mouse andenter the new number (usually be-tween 1 and 15). Confirm with the„Enter“ key.Before entering the table, changes invalues with calculation must be trans-ferred to the BCS. To enter the table,click the red arrow button and enterthe corresponding operating point.

After pressing the OK key, the motorsleave the ignition position and rampup to the selected operating point.


F1 F2 F3

Set ignition point

Ignition


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The motors ramp from the ignitionposition 1050 990 to 1061 1008.

Use the red arrow keys to approachthe operating point on the motorcurves.

The red arrow keys on the left-handside move the operating point oneincrementup or down.The red arrow keys on the right-handside move the operating point 10 in-crements in the chosen direction. TheBCS individually approaches eachoperating point in between the 10values.

The current curves can be viewed inthe graphics window.The numbers 1, 10, 20, 30, 40, 50,60, 70, 80, 90 and 100 are interpola-tion points (marked x in Pkt. type).To change the value, click on a fieldin the table.An operating point can be convertedto an interpolation point by:- changing the fuel, air or output value- double clicking on any cell in the

line

To remove an interpolation points,double click on the „x“.

Example:Modifying the air motor position.There is a deficiency of air at operat-ing point 7.• Click on field in line No. 7 and in

the „Luft“ (Air) column .• Increment the number (press En-

ter).The CRC-PC changes.

• Click on individual value. The airmotor ramps up to the new position(all CRCs will again be identical).

• Repeat the points for „PositionLuftmotor ändern“ (Modify air mo-tor position) until the desired com-bustion setting is reached. The fi-nally value must be transferred byclicking on „Berechnung“ (Calcula-tion) to linearize the points betweenthe interpolation points.

Example: Modifying several points.

The air curve must be partially raised.

• Modify corresponding interpolationpoints for air.

• Click on „Berechnung“ (Calcula-tion).

• Check graphics .• Click on „OK“

(the complete curve is transferredto the BCS).

The 3 CRCs must now be identicalagain.• Click on red arrow keys. The mo-

tors ramp up to the newly enteredcurve.

If all points on the curve are correct,ramp the burner down to the low op-erating point.Shut down via the BCS.

F1 F2 F3

Setting phase, gas Intensity:: 247

Index: 9Off

Intensity: 247 is the flame signal in-tensity



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F1 F2 F3

After shutting down the burner, thefollowing message appears on thedisplay of the BCS control unit:

Press F2 key,press + key until„CRC eingetragen“(CRC entered)appears, press F1 key.


Enter Back

F1 F2 F3

Setting : 58 | 58Gas curve : 44 | 44Oil curve : 245 | 245Enter Save

Note:

The values in a line must always be equal.

Left-hand value calculated by system

Right-hand value stored value since last transfer

Settings CRC over the safety relevant settings of the system

Gas curve CRC over the complete gas curve

Oil curve CRC over the complete oil curve



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838383-848585-868788899091-93949595

BCS-VISIONOverview / application

Burner Control SystemBCS -VisionOverview / application

Main windowSettings in the menuAccess for fittersSetting window for data processing without BCSComponents in the setting windowMenu itemsData transfer from PC to BCSData transfer from BCS to PCSetting window for data processing with BCSSet the BCSEnter memosThe graphics windowSettings in the menuOld documentatio

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Main windowThe main window provides access tothe setting window by entering apassword or a keyword. Existing files(motor curves) can be edited in thesetting window. At the bottom edgeof the window there is a status dis-play which indicates whether a con-nection to the BCS exists, andwhether the BCS system has abortedor interlocked.

Settings in the menu

Menu item „Datei“ (File)

„Beenden“ (Exit) ends BCS Vision

Optional for exitingthe programs.

Menu item „Optionen“ (Options)

Any keyword can be selected in thesubmenu „Kennwort ändern“(Change keyword).

Optional for changing thekeyword.

The „Kennwort Änderung“ (Keywordchange) window (see right) isopened.

After entering the password for fitter access (234) and the valid keyword (de-fault setting: „Maier“), the new keyword can be entered.

The fitter can use the „NeueKennwort“ (New keyword) to gener-ate his own keyword.


„Zugang für Monteure“ (Access forfitters) can be obtained by enteringthe general password (234) or theself-defined keyword in the field„Passwort“ (Password).


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The PC interface for BCS data trans-fer can be specified in the submenuitem „Schnittstelle“ (Interface). Aftera selection is made, the data aresaved to the BCS.DAT file.The default setting is COM 1 (even ifthe file BCS.DAT does not exist).

Access for fitters(access for the operator is not imple-mented)

Procedure:

The item „Monteur“ (Fitter) is auto-matically selected in the left-hand fieldof the Main window.The password or the (freely selected)keyword must be entered in the field„Passwort“ (Password).

Press OK key.

The right-hand field of the main win-dow changes.

By selecting „Daten von Datei“ (Datafrom file) (and pressing the OK key),previously savedcurve settings can be retrieved andedited in the setting window.



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Example:After pressing the OK key, the dialogfor opening a file appears.

Click on the „Öffnen“ (Open) key toload the marked file. The setting win-dow for editing without BCS (Offline)is displayed.

By selecting „Aktuelle DatenBearbeiten“ (Edit current data) in themain window (and pressing the OKkey ), previously loaded curves fromthe BCS or a file can be edited in thesetting window.

Setting window for data processing without BCS

All curve settings can be changedand checked in the setting windowfor data processing without BCS.



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Components in the setting window

• The currently selected curve „Gas/Oil“ is displayed in the windowheader

• „Gaskurve“ (Gas curve) and„Ölkurve“ (Oil curve) key U s eto select curve to be edited.

• „Grafikfenster“ key Opens awindow in which the curve valuescan be graphically represented(check)

• „Berechnung“ (Calculation) keyLinearizes points on the curve andupdates the values in the table.

• Fields „Anlage“ (System), „Datum“(Date) and „Monteur“ (Fitter)Here you can specify the system,the date of change and the nameof the fitter..

• Table at top leftIn the table you can view the set-tings for the curve currently se-lected (gas curve or oil curve).To change the settings, click on afield with the mouse and enter avalues using the keyboard. Thearrow keys on the keyboard canalso be used for navigating withinthe table.

The column „Nr“ displays the op-erating point or the line number.100 operating points (motor posi-tions) are available in a table.

The column „Brennstoff“ (Fuel)contains 100 motor values (posi-tions) for the fuel motor (gas or oil).

The column „Luft“ (Air) contains100 motor values for the airdamper motor.

The column „Leistung“ (Output)contains the output of the burnerin percent.The fitter must enterthese values when setting theburner at the factory (no automaticinput). The column „PktArt“ iden-tifies the interpolation points. Theycan be identified as an interpola-tion point or deleted by double-clicking on the selected field. Thevalues between the interpolationpoints are linearized.


This means that it is only neces-sary to select one pair of lines inwhich the motor values are en-tered and identified as an interpo-lation point. When the„Berechnung“ (Calculation) key ispressed, the program calculatesthe intermediate values.Operating points 1, 10, 20, 30, ...,100 are defined as interpolationpoints and cannot be deleted.

Fields below the tableThe first fields below the table con-tain the values of the motors forthe ignition position.

The fields below them contain thevalues of the motors for the purgeposition.

The fields at the bottom left con-tain the maximum allowable mo-tor positions.These values must be set in theBCS and cannot be changed inBCS Vision.

• Clicking the „Tabelle in Dateispeichern“ (Save table as file) but-ton opens a dialog which can beused to enter a file name or selectan existing file for saving the up-dated data to the „*.BCS“ file.

• „Exit“ keyExits the setting window and dis-plays the main window.Old documentatio

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Menu item „data“• „Eintrag rückgängig“ (Undo entry)

Allows the previously changedvalue to be restored.

• „Anzeigen der Memo-Einträge“(Display memo entries)Opens the dialog window for se-lecting a memo file (*.mem).Afterconfirming, the following windowappears.

If no memo file exists, see „Memoseintragen“ (Enter memos).


The name of the selected file is dis-played as the first entry.The lines inthe table which are stored with a textare displayed below it.

• „Daten anzeigen“ (Display data)BCS setting parameters and op-erating data are displayed.

• „Drucker einrichten“ (Set upprinter)For selecting and setting theprinter.

• „Daten ausdrucken“ (Print data)For printing out:- BCS setting parameters- BCS operating data- Table of gas curve values- Table of oil curve values- System / fitter name, setting andprinting dates (footer text)

Menu item „Kurvenanhebung/Kurvenabsenkung“ (Raisecurve/lower curve)A complete motor curve can beraised or lowered by a definedpercentage or by a fixed value withthe menu items „Kurvenanhebung“(Raise curve) and„Kurvenabsenkung“ (Lowercurve).


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Data transfer from PC (BCS -Vision) to BCS

Selection of level 2 at the BCS con-trol unit

Enter code numberPress the Enter key

Press the + key until the option„Einstellungen mit PC“ (Settings withPC) is displayed, and then press „En-ter“

F1 F2 F3


Ênter ^

Selection of points „PC => BCS Daten“(PC => BCS data).

The data of the gas/oil curves canbe checked in the table.

Button functions

• „Gaskurve“ (Gas curve), the valuesof the gas curve can be checked inthe table.

• „Ölkurve“ (Oil curve), the values ofthe oil curve can be checked in thetable.

• „Grafikfenster“ (Graphics window)is for graphical representation of themotor curves

• „Exit“ closes the window.

• „Daten laden“ (Load data) starts thedata transfer to the BCS. A progressdisplay shows the status of the datatransfer.After the data is loaded into theBCS, the window can be closedwith the „Exit“ button or by press-ing the F1 key (Enter) on the BCScontrol unit.


A previously saved file can be selected. To load this file, press the „Öffnen“(Open) button. The following window now appears.

The following dialog appears onscreen of the PC.


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Selection of level 2 at the BCS con-trol unit

Enter code numberPress the Enter key

Data transfer from BCS to PC (BCS -Vision)

F1 F2 F3


Ênter ^

The window has the same structureas for „Datenübertragung zum BCS“(Data transfer to BCS) except that thedata can be saved as a file and arenot transferred to the BCS.

When the key „Tabelle in Dateispeichern“ (Save table as file) ispressed, a dialog for selecting the fileor the filename appears. The data aresaved to this file (*.BCS).


Select „BCS => PC Daten“ (BCS =>PC data).The data are transferredfrom the BCS to the PC. The progressdisplay appears on the PC screen.

After the transfer is completed, a win-dow for checking and saving the datais displayed.

Press the + key repeatedly until theoption „Einstellungen mit PC“ (Set-tings with PC) is displayed.Then pressdie Enter key.


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Setting window for data processing with BCS (setting operation)

To call up this window, it is necessaryto load data beforehand from the PCto the BCS, or from the BCS to thePC.

F1 F2 F3


Enter Back

The menu „Einstellung mit Gas“ (Set-ting with with gas) or „Einstellung mitÖl“ (Setting with oil) can be selectedwith the + key on the BCS control unit(in the submenu „Einstellung mit PC“(Setting with PC).

Then confirm with the F1 key.

The setting window is opened.

The CRC fields contain the CRC re-sults of the BCS setting data and ta-bles.

CRC-PC -> Calculation by PCCRC-A -> Calculation by BCS -

safety computer ACRC-B -> Calculation by BCS -

safety computer B

The data of all computers is identicalare there is no transfer fault if all threeCRC values match up.



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Set the BCS

The system startup procedure can bedefined in the „Einstellungen“ (Set-tings) menu.That is to say, you canspecify whether the BCS is to stop inthe purge position and whether thepurging procedure and ramp-up toignition position are to be started fromthe PC, or whether the BCS itself con-trols the start phase until commence-ment of ignition.In both cases the BCS utilizes the pre-set values of the automatic burnercontrol program.

Options:• „Einzelabfrage“ (Individual query)

stops the system program after thepreventilation position is reached.

• „Autostart“, the system program ofthe BCS runs until the ignition posi-tion is reached.

Click the „Start“ button at the top rightof the window, and the BCS motorswill ramp up to purge position (belowtable)

The „Aktive Zeile“ (Active line) windownow displays the position which theBCS motors have ramped up to.

The position of the motors for thepurge position can be changed, ifnecessary, in the fields for the purgeposition.

Use the „Einzelwert“ (Individual value)key to transfer the new values for thepurge position to the BCS; the BCSthen ramps up to this position.

After clicking the „Spülen“ (Purge)button at the top left of the window,the purge operation is started.

The preventilation period (purge time)and all other settings for the automaticburner control system were previouslyentered when setting the parameterson the BCS control unit.



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Press the „Zündposition“ button, andthe BCS will ramp up to this position.

As described previously for the purgeposition, the ignition position can bechanged in the fields „Zündposition“(Ignition position); the values can betransferred to the BCS and the BCSservomotors can be ramped up tothese new values with the „Einzelwert“(Individual value) button.

The ignition display appears on theBCS control unit display.

Press the F1 key to ignite the burner(key must be pressed for at least 1s).

The ignition position can again bechanged and the new values trans-ferred with the „Einzelwert“ (Individualvalue) button.

After clicking one of the red arrowbuttons, the point of entry No. can beselected in the table.

Burner Control SystemBCS VISIONOverview / application

F1 F2 F3

Set ignition point

Ignition


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The operating points on the motorcurves can be approached with thered arrow buttons.

The arrow buttons on the left movethe operating point one increment upor down.

The table values are linearized withthe „Berechnung“ (Calculation) but-ton. Note: all changed values in be-tween the interpolation points will berecalculated.The curve should, there-fore, be executed again.

The data can be checked in thegraphics window before they aretransferred to the BCS.

Press the OK key to transfer the tableto the BCS.

The arrow buttons on the right movethe operating point 10 increments inthe selected direction (the BCS ap-proaches each individual operatingpoint in between these 10 values).



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Enter memos

To store a memo in a lines in the ta-ble, this line must first be marked withthe left mouse button and then clickedwith the right mouse button. A dialogfor opening a file now appears.

If no file has been generated as yet,the procedure must be aborted aftercalling up the dialog.

After a file is selected, the Memo fieldis opened.In this field you can enterdata of the operating point or specialpoints to note regarding this operat-ing point.

Press „OK“ to close the memo fieldand save the entry to the file selectedpreviously.If no file has been opened as yet, adialog „Datei speichern unter“ (Savefile as) appears in the Memo fieldwhen the OK key is pressed.

A separate memo file is generated forthe gas table and oil table.

Once all settings have been made,setting mode can be exited by press-ing the F1 key (OFF) on the BCS con-trol unit.

The setting window on the PC isclosed and the main window isopened.



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The graphics window

The red-shaded curve of the legendcan be edited in the graphics window.

To edit a curve in the graphics win-dow, click the left mouse button onthe interpolation point. Hold mousebutton down and move the interpola-tion point to the desired position. Re-lease the mouse button to drop theinterpolation point. The values in be-tween the interpolation points arelinearized automatically.

Menu item „Datei“ (File)=•“Drucker einrichten“ (Set up printer)

For defining and setting up theprinter.

• „Fenster Drucken“ (Print window)Print the graphic

• „Beenden“ (Exit) Closes the windowand opens the setup window.

Menu item „Daten“ (Data)•“Motor Kurven“ (Motor curves) The

motor curves for gas firing or oil fir-ing can be selected.

• „Leistung“ (Output) The outputcurve for the fuel type currently inuse is displayed.

• „Kurvenauswahl“ (Curve selection)Fuel type selection for motor curve.

• „Rückgängig Kurve verschieben“(Undo shift curve) can be used toundo the previous change to thecurve in the graphics window.


• „Motorkurve bearbeiten“ (Edit mo-tor curve) Selection of fuel curve orair curve.The selected curve is shaded redin the legend at the bottom left. Thiscurve can be edited in the graph-ics window.

• „Berechnen“ (Calculate) The curvesare linearized in between the inter-polation points (line equation).


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