FH344gb

MULTICONTWEIGHFEEDER

Operating Manual

FH 344 GB

Contact, Copyright

©Copyright 1999

SCHENCK PROCESS GmbH, Landwehrstrasse 55, D-64293 Darmstadt

All rights reserved. Any reproduction of the manual, regardless of method, without

prior SCHENCK PROCESS GmbH in writing, even by excerpt, is prohibited.

Sales: Tel.: +49 (0)6151 32 - 10 28

Email: [email protected]

Application Segments Service:

Heavy Duty Weighing & Feeding

Service Tel.: +49 (0) 61 51 32 - 26 23

Service Fax: +49 (0) 61 51 32 - 32 70

Light Duty Weighing & Feeding

Service Tel.: +49 (0) 61 51 32 - 25 72

Service Fax: +49 (0) 61 51 32 - 17 49

Screening / Drying / Cooling

Service Tel.: +49 (0) 61 51 32 - 10 75

Service Fax: +49 (0) 61 51 32 - 30 96

Weighing in Transport & Dispatch Automation

Service Tel.: +49 (0) 61 51 32 - 24 48Service Fax: +49 (0) 61 51 32 - 13 69

24h Emergency hotline: +49 (0) 172 - 650 1700

Email: [email protected]

Spare Parts:

Electrical: +49 (0) 6151 32 - 17 58

Mechanical: +49 (0) 6151 32 - 31 22

Fax.: +49 (0) 6151 32 - 36 32Hotline: +49 (0) 171 - 225 1195

http://www.schenck-process.com

CONTENTS

1.Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.1 General Comments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.2 Machine Control Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.2.1 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

1.2.2 Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

1.3 Inputs Routines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

1.3.1 Start/Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

1.3.2 Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

1.3.3 Select Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

1.3.4 Reset Totalizing Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

1.3.5 Enter Setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

1.4 Function Distributor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

1.4.1 Display Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

1.4.2 Batching Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

1.4.3 Check System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

1.4.4 Calibration Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

1.4.5 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

1.4.6 Restoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

2. Event Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.1 General Comments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.1.1 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.2 List of Event Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

2.2.1 System Faults SY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

2.2.2 Safety Indications SC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2741

Transmission to third parties and reproduc-tion of this documentation are not permitted.SCHENCK PROCESS GmbH reserves allrights of ownership and copyrights.

TechnischeRedaktion FH

MULTICONT WEIGHFEEDER

ContentsFH 344 GB I - 1

2.2.3 Safety Indications WE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

2.2.4 Safety Indications WM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

2.2.5 Safety Indications MF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

2.2.6 Interlocking IL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

2.2.7 Controller CO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

2.2.8 Check Measurement CH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

2.2.9 Calibration CA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

2.2.10 MAX Limit Values HI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

2.2.11 MIN Limit Values LO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

This manual applies to the following software: FDB 1201-05

Edition: 741

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Transmission to third parties and reproduc-tion of this documentation are not permitted.SCHENCK PROCESS GmbH reserves allrights of ownership and copyrights.


WEIGHFEEDER MULTICONT

ContentsFH 344 GB I - 2

1 Operation

1.1 General Comments

Operating Manual FH 344 GB Multicont Weighfeederdescribes the operation of a weighfeeder in its extendedversion. For commissioning, calibration, configuration,and parametrization of the system, please see ServiceManual FH 345 GB.

The weigherfeeder can be operated via

• one or two machine control stations

• a group control station and

• a host system.

For commissioning, several functions can be controlledvia local control box.

Entry and access privileges of a control station can beselected for each mode of operation and function; com-bined operation is possible. To ensure operational safe-ty, the most important functions are protected againstinadvertent modification by password and key switch.

The following details refer to the operation of a machinecontrol station.

1.2 Machine Control Station

There are two types of machine control stations:

• Machine control station FLB 0400, designed tobe installed in control cubicles

• Machine controls station FLB 0500 EEx..., de-signed as floor-standing unit, for use in hazard-ous zones.

Displays and keyboards of both control stations arealmost identical.

With machine control station FLB 0400, the process andfeeder data are show on a two-line display. 6 LEDs areavailable for simultaneous check of active operatingstates, 5 arranged beside the display and 1 in key “ON”.

With machine control station FLB 0500 EEx... all dataare shown on a three-line display..

Operation is via function keys arranged in 3 blocks belowthe display.

SCHENCK MULTICONTSCHENCK MULTICONT

Fig.1.1: Machine Control Station FLB 0400 Fig.1.2: Machine Control Station FLB 0500 EEx-i


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Transmission to third parties and reproductionof this documentation are not permitted.SCHENCK PROCESS GmbH reserves allrights of ownership and copyrights.


OperationFH 344 GB 1 - 1

The LEDs have the following meanings:

LED

FLB 0400

Shown onDisplay

FLB 0500

Meaning

a POK Mains connected

b PRO Microprocessorready to operate,

c KOM Data lines ready tooperate,

d VOL* Volumetric Mode

e GRAV* Gravimetric Mode

A ON Feeder ON.

* also in stop state of feeder

1.2.1 Display

For clear representation, the display is divided in 5display fields.

HH UU SSSSSSSSSSSSSSEEEE AAAAAAAAAAAAAA

HH Field for main modes,

UU Field for submodes,

EEEE Field for events,

SSSS Field for setpoints,

AAAA Field for inputs and outputs.

In the field for main modes, the active main mode ispermanently displayed. A newly selected main modeflashes and is underlined until entry is completed.

Entry and access privilege for setpoints and feederfunctions are defined for each individual main mode. Ifthe main mode is changed, the sources (control stations,

interfaces) determined for the new mode become effec-tive.

All displays always hold for the active main mode indi-cated in the display field.

M0 Mode 0,

M1 Mode 1,

TM Test-Mode,

LO Local-Mode.

In the field for submodes, the submode active is dis-played.

CA Set-up program active,

BA Batching mode active,

CH Check system active.

All functions can be accessed via function distributor.

In the field for setpoint, the setpoint is permanentlydisplayed.

The active feed rate setpoint is represented in the inputand output field. In batching mode, residual amount, orbatching amount, can be displayed.

Character for feedrate setpointP = Feed rate setpointZ = Batch setpoint [kg

6-digit display includingcomma, order of magnitudesettable by parametrization

Pt = xxxx xx kg/h Absolutesetpoint(relativeset pointin percentisdisplayedonly ifrelativeevaluationisprovided)

Sourec is active.

Source of displayed setpoint,t = Keyboard of machine control

stations= SE-bus (group control station)a=Analog inputfree = active setpoint


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In the field for inputs and outputs, all entered values areindicated. Additionally, the following data can be dis-played:

P [kg/h]* Active feed rate set ,

I [kg/h]* Actual feed rate,

v [m/s] Belt speed,

Qr [%] Belt load [% nominal belt load],

Qa [kg/m] Belt load,

Z1 [kg]* Totalizing counter 1,

Z2 [t]* Totalizing counter 2,

Z1t [t]* ¤ Totolizing counter 1,dry weight;

Z2t [t]* ¤ Totalizing counter 2,dry weight;

xd [%] Deviation,

Q2r [%] ¤ Relative belt load2nd weighbridge,

Q2a [kg/m] ¤ Absolute belt load2nd weightbridge,

It [kg/h]* ¤ Actual feed rate, dry,

f [%] ¤ Material humidity,

Zd [t]* ¤ Residual batching amount,

Zb [t]* ¤ Amount fed,

FG [kg]* ¤ Bin fill weight,

Pos [%] ¤ Stellungsmeldung Zuteiler,

F/Z T ¤ Result of tare check meas-urement,static/continuousmeasurement,

F/Z B ¤ Result of span check meas-urement,static/continuousmeassurement.

¤ Values are displayed only with functions actively con-figurated.

* The dimension of display can be set by parametrizati-on.

In the field for events, the event messages are dis-played. All important feeder functions and process va-lues are internally monitored. Deviations are indicatedas events and assigned to an event class in accordancewith their weightings. There are 4 classes of events,differing by display type:.

• ALARM Flashing and underlined,

• WARNING 1 Permanent and underlined,

• WARNING 2 Permanent.

If an event of the ALARM class occurs, feeder switchesoff immediately. Otherwise only a display is made. Afteroperation of key HELP, the event is indicated in plainlanguage in the lower display lineThe event is acknowledged by operation of key AC-KNOWLEDGEMENT. Then events of the ALARM andWARNING 1 classes and events of the WARNING 2class are displayed, with their states being internallymaintained. When cause has been removed, acknow-ledged events and events of class 2 are no longerdisplayed.After cut-off caused by alarm, feeder cannot be restartedbefore event message is acknowledged and cause re-moved.


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1.2.2 Keyboard

The keys for the two machine control stations are iden-tical except of the arrangement and the additional cursorkeys of FLB 0500. The following keys are provided:.

A ON,start feeder,

B OFF,stop feeder,

D MODE 0,select mode 0,

E MODE 1,select mode 1,

C HELP,display event message in plainlanguage. The 10 most signifi-cant errors are displayed, eachfor three seconds

F ACKNOWLEDGEMENT,acknowledge event message,

G FUNCTION DISTRIBUTOR,select function menu,

H ROLL,preselect setpoint field,

I ROLL,preselect input/output field

M Counter RESET,set totalizing counter to zero

J ENTRY,open entry field and numerickeyboard

8 CURSOR UP,increase value of selected field,

2 CURSOR DOWN,decrease value of selected field,

4 CURSOR LEFT,move cursor to the left,

6 CURSOR RIGHT,move cursor to the right,

N ESCAPE,interrupt entry, or set-up pro-gram, return to previous display

O DELdelete figure entered last,

P ENTER,complete entry,

K Minus sign

L Decimal point

Fig.1.3: Keyboard Machine Control Station FLB 0400


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1.3 Inputs Routines

1.3.1 Start/Stop

After operation of the mains switch the MULTICONTsystem is activ. Feeder data are automatically loadedinto the active store During this time, display shows thesystem name “SCHENCK MULTICONT”. If feeder isready to operate, system message is replaced by cur-rent operating state.

The feeder can be started only if no condition for cut-offis given and if no ALARM messages are available. Thefeeder can only be started by the control station havingentry privilege for the active mode.

A Start feeder.(Totalized amount of material,belt drive only if function is acti-vated)

B Stop feeder.

1.3.2 Displays

I

82

Operate roll key FORWARD toselect input/output field. Afterkey operation, an arrowheadappears for some instants inthe selected line. Then operatecursor UP of DOWN to “roll”the desired indication into thedisplay field.

1.3.3 Select Modes of Operation

DE

P

Main modes M0 and M1 are se-lected directly via function keysM0 and M1. Display flashesand is underlined until entry iseffected by operating key EN-TER.

G

28

Main mode “Test Mode” andsubmodes are called via functi-on distributor.Main mode “Local Mode” is acti-vated by the local control box.

FunktionTest-Mode

P

1.3.4 Reset Totalizing Counters

The two totalizing counters can be set to zero inde-pendent from each other. The funciton is mode-depend-ent.

M

NUMBER_

P

After operation of key RESET,enter number of counter to becleared. By operating key EN-TER the selected counter is setto zero..


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1.3.5 Enter Setpoint

The feed rate setpoint can be entered via keyboard onlyif entries may be effected from the machine controlstation in the active main mode.

H

82

In the setpoint field the type ofvalue to be entered is deter-mined. Depending on configura-tion, absolute setpoint Pabs orrelative setpoint Prel can be en-tered.

Pt = xxx kg/hPt = xx %

Depending on parameters set,the absolute setpoint can be en-tered in kg/h or t/h.

J By operating key ENTER the in-put field is opened and pre-vious display is replaced bydashes.

______ kg/h The dimension is displayedright-flush. Numeric values areentered left-flush.

O Delete faulty value by operatingkey DELETE.

P Acknowledge entry by opera-ting key ENTER. The setpointentered appears on display.

N Abort entry by operating keyESCAPE. Previous setpoint re-mains valid.

If a percent evaluation of setpoint is selected, the activesetpoint is

Pwirk =Pabs ⋅ Prel

100%

The active setpoint can be represented in the input/out-put field.

The percent evaluation ot the absolute setpoint enablesthe feeders operating in a group of feeders to participateindividually in a common setpoint.

Emample:For main modes M0 and M1 setpoints and setpointsources are determined in accordance with the table.

Upon changeover of mode the relevant setpoints aresynchronized provided that the machine control stationis determined as source in the target mode.

In Gravimetric Mode, the active setpoint is limited toPNENN, in Volumetric Mode to 3 x PNENN .Event field shows:

C0 02: VALUE TOO HIGH

The entered value remains on display.

Mode ofOperation

M0 M1

SourcePrel [%]

FLBPt = 50%

FLBPt = 50%

SourcePabs [kg/h]

FZBPs = 200 kg/h

AEPa = 100 kg/h

Activesetpoint Pwirk 100 kg/h 50 kg/h

Pt = Sollwert von TastaturPs = Sollwert über SE-BusPa = Sollwert von Analogeingang


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1.4 Function Distributor

All submodes can be called via function distributor.Furthermore, the device contains different functions andprograms for feeder setting.Access to functions marked by is protected by contact(key switch) and password (7274). Password interroga-tion may be switched on or off by parametrization. If thekey switch is ON password interrogation is switched off.The password entered upon interrogation remains acti-ve until the main mode is changed.

The functions marked by 9 are displayed only it themachine control station has access privilege.

G

28

P

The function distributor is ope-ned by key FUNCTIONDISTRIBUTOR.Display shows the funciton acti-vated last or, if key switch isON, subfunction distributor “Ca-libration Functions”.Roll functions by operatingCURSOR UP or DOWN andcall function by operating keyENTER.

N Quit function distributor by ope-rating key ESCAPE.

1.4.1 Display Check

Display is checked by means of this function. Displayelements flash for approx. 5s. Then version number ofsoftware is displayed.The versions number stated in the table of contents mustmot mecessarily correspont to the number is display.

GPFunctionDISPLAY CHECK

MULTICONT FSE:FDBXXXX-YY TTTJ

FDB XXXX-YY : Function numberTTT : Consecutive day numberJ : Last figure of year

Accessto

Key Switch

ON OFF

Passwordinterrogation

ON

Allfunctions

Restorecalibration functions

Passwordinterrogation

OFF

Allfunctions

Nofunctions

Table. 1.4: Function Distributor

Subfunction. . . . . . . . . . . . . . . Display

Calibration . . . . . . . . . . . . . . . . Functions

Acquire belt length . . . . . . . . . . . LB: Pulse/Rev.Taring. . . . . . . . . . . . . . . . . . . . . TW: Tare¤ Weight check . . . . . . . . . . . . CW:Check Q¤ Taring supply bin . . . . . . . . . TF: Supply bin¤ Taring 2nd Weighbridge . . . . T2: Tara 2. WB2Controller optimzation . . . . . . . . Control. adapt.¤ 2nd weighbridge active. . . . . WB2 active¤ 2nd weighbridge not active. . WB2 inactiveTime entry . . . . . . . . . . . . . . . . . Set timeDisplay service values . . . . . . . . Suppl. DisplayTest mode . . . . . . . . . . . . . . . . . Test-ModeVolumetric mode . . . . . . . . . . . . VolumetricGravimetric mode . . . . . . . . . . . Gravimetric¤ Prefeeder ON . . . . . . . . . . . . Prefeeder ON¤ Prefeeder OFF . . . . . . . . . . . Prefeeder OFF

Main Function. . . . . . . . . . . . . . Display

¤ Prelelect batching mode . . . . Batch mode on¤ Abort batching mode. . . . . . . Batch mode of¤ Abort batching mode. . . . . . . Batch init.¤ Start zero point calibration . . Calib. Zero¤ Start span calibration . . . . . . Calib. span¤ Abort calibration . . . . . . . . . . Stop calib.Zero setting proram . . . . . . . . . . > 0: Zero setDisplay check Display check• Calibration functions . . . . . . . Calibration• Programming . . . . . . . . . . . . Programming• Restoring . . . . . . . . . . . . . . . Recover


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1.4.2 Batching Mode

Sequence:

FunctionBATCH MODE ON

P

Preselect batching mode (fee-der must be OFF), batch set-point can be entered.

H8 Enter batch setpoint. Setpointhas to appear in the setpointfield.

Zt = xxxx.xx kg

JP Open input field and enter va-lue.

I8 Batching amount, or residualbatching amount, can be dis-played in the input/output field.

Zb xxx.xx kgZd xxx.xx kg

Start batch, initialize batchingamount and residual value.

A Start batch, initialize batchingamount and residual value.

B A running batch is interruptedby operating key OFF, or eventmessage of class ALARM. Dri-ve cuts off with values remai-ning maintained. Upon start offeeder, batch continues beingprocessed.

BATCH MODE OFF

PA running batch is aborted, dri-ve is cut-off. Upon start of fee-der, a new batch is started.

BATCH INIT.

P Drive is cut off, sub-mode“Batching Mode” is reset andthe batch setpoint cancelled.Feeder returns to its previousmode of operation. Function“Batch Init”. is called automat-ically whenever modes arechanged during batching opera-tion.

1.4.3 Check System

The system, serving for zero point or span correction, isstarted via function distributor. If necessary, checkmeasurement can be aborted. The active system isrepresented in the submode field with “CH”, the eventmessages are displayed in the event field with thesymbol only. The results of the latest measurement canbe rolled into the input and output field. Depending onconfiguration, the correction value is accepted automat-ically or by hand. If an error occurs, the result has to beaccepted or rejected by hand anyway.

Start-up and Operating Conditions:

• No batching mode,

• No set-up program active

Program End:

Accept correction value in accordance with configurati-on.

Sequence:

FUNCTIONCALIB.ZERO

Display in sub-function distribu-tor.

P Start check measurement forzero point correction, or spancorrection (KME B).

CH 09:NO PERMISSION

Check is logged on, system ex-pects permission.

CH 10:PREPARATIONACTIVE Permission was given, on error

messages are available. Bin fillweight is checked, if necessa-ry, refilling is initiated.

CH 08:FEEDBACKPREFEEDER End of filling has to be accep-

ted by a feedback signal. Mes-sage CH 08 is displayed untilacknowledgement is effectedand a damping time has elap-sed. This is when measure-ment is started.


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F/Z T Relult of check measurementfor zero point correction (F/Z Bfor span correction).

I8 Check result can be displayedin input/output field. The relati-on of static measurement tocontinuous measurement is dis-played.

P The correction value is accep-ted with ENTER if manual ac-ceptance has been preselected(configuration), or if an errorhas occured in automatic ac-ceptance.

N By operating key ESC, result isrejected and check terminated.

FUNCTIONSTOP CALIB.

P Check measurement is aborted.

Messages: For running messages and er-ror messages, see Chapter 2,2.2.8 “Check MeasurementCH”.

1.4.4 Calibration Functions

Sub-function distributor “Calibration Funciton” com-prises all programs and functions required for commis-sioning and calibration of feeder.

The Gravimetric Mode is the normal mode for feedingof bulk solids. Via the prefeeder the actual feed ratemeasured is controlled to the feed rate set. In Volume-tric Mode the actual feed rate measured is not used forclosed-loop control. In Gravimetric Mode, too, feederchanges over to volumetric mode during the start-upphase.If feeder is active, these sub-modes are displayed bysignal lamps VOL, or GRAV.

The funciton “Time Entry” servers for entry or interro-gation of system time. After call of this funciton, year,month, day, hour, minute, and second are interrogatedone after the other. Entry always comprises two digitsand must be acknowledged by operating key ENTER.After entry has been completed, the current time isdisplayed. If the time is to be interrogated alone, thesequence is the same but instead of a digital entry, keyENTER has to be operated.

Main mode of operation “Test Mode” is provided forcommissioning and checks and should exclusively beused by authorized persons.

The function “Service Values” serves for display of:

EAx.AEx [V] Voltage at analog input x,input/output unit x, measure-ment data acquisition unit x;

EAx.AAx [V] Voltage at analog output x,input/output unit x;

aw [%] Current load cell utilization;

frq [Hz] Raw measured value of speedtransducer;

Y [V] Control magnitude;

ED [h] Duty cycle;

EAx_DE 000000 Status of digital inputs, in-put/output unit x, measurementdata acquisition unit x;

EAx_DA 000000 Status digital outputs, input/out-put unit x;


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s [%] ¤ Slip, change of weighlength;

ab [%] ¤ Current load cell utilizationat bin;

ap [%] ¤ Supply bin current load cellutiliuation, 2nd weighbridge;

YZ [V] ¤ Control magnitude prefee-der;

ch B [%] ¤ Relative span error, checksystem;

ch T [%] ¤ Relativer NullpunktfehlerKME;

yf [mV] ¤ Control magnitude for fillweight control;

tr [%] ¤ Belt position (0% = center);xx % <- ¤ Belt drift, left;xx % -> ¤ Belt drift, right.

The service values marked by ¤ are displayed only, ifthe corresponding functions are activated.

1.4.5 Programming

This sub-function distributor contains all functions requi-red for feeder adjustment.

1.4.6 Restoring

This function servers for simultaneous loading of para-meters and configuration data stored in the memorymodule. For starting this function, feeder must be swit-ched off.

Program Sequence:

FUNCTIONRECOVER

Display function

P Start function

Ja = 1, Nein = 0_RECOVER

Interrogation for acknow-ledgement.

1 P All data are loaded. At first, pa-rameters are checked and loa-ded, then configuration data.Errors entail abort of function.

Error Messages:

SWITCH OFFRECOVER

Feeder is not switched off. Onlyparameters have been loaded.Stop feeder and restart function.

CHECKSUMFAULT

Data transmission was faulty.Repeat function. Exchange me-mory upon repetition of messa-ge.


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2. Event Messages

2.1 General Comments

The MULTICONT system monitors the hardware as wellas the signals and parameters decisive for operationalsafety, feeder functions and feeding process. Malfuncti-ons or deviations from setpoints are indicated as events.To each event, an event class and thus a reaction isassigned by configuration. There are 4 event classeswith the reactions

ALARM Stop of prefeeder, feeder,and measuring drive,

WARNING 1 Display W1,

WARNING 2 Display W2,

IGNORE Suppression of display.

The event messages are classified in groups in order tofacilitate trouble-shooting.

SY System faults,

SC Safety indications: General,

WE Safety indications: Electrical equipmentof feeder,

WM Safety indications: Mechanicalequipment of feeder,

MF Safety indications: Material flow

IL Interlocking,

CO Controller,

CH Check measurement,

CA Calibration,

HI MAX limit values,

LO MIN limit values.

For identification in the control station display and fordata communication, a code is assigned to each mes-sage resulting from the group symbol and the number ofposition within the group.

2.1.1 Display

The event messages are displayed in the event field.

ALARM is underlined and flashes,

W1 is permanent and underlined,

W2 is permanent.

If several events occur at the same time, priority is asfollows:

ALARM before W1 before W2

within an event class as per group assignmentin accordance with the group position in theevent list

within a group as per position number.

Alarm and W1 have to be acknowledged. Then displayis the same as in the case of a W2 event, but internallythe correct status is maintained. After remedy of causedisplay disappears.W2 messages are effaced automatically after remedy ofcause.Acknowledgement of an event has a general effect onall event messages occurring at the same time.When feeder is started, all event messages which couldoccur during operation are suppressed.

In Local Mode, any avaible controller fault is reset.

Transmission to third parties and reproducti-on of this documentation are not permitted.SCHENCK PROCESS GmbH reserves allrights of ownership and copyrights.

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Event MessagesFH 344 GB 2 - 1

2.2 List of Event Messages

2.2.1 System Faults SY

The assemblies are monitored for communication er-rors. If an error is reported, have assemblies and con-nections checked by a specialist.

SY 01: ME1 DATA LINKMeasurement data acquisition unit FME1.



SY 04: EA 1 DATA LINKInput/output unit FEA1.



SY 07: LBS 1 DATA LINKMachine control station FLB1.

SY 08: LBS 2 DATA LINKMachine control station FLB2.

SY 09: SE* DATA LINKBatch processor.

SY 10: MEMORY FAILSE memory.

SY 11: q WRONG UNITConfiguration belt load.

SY 12: v WRONG UNITConfiguration speed.

SY 13: qb WRONG UNITConfiguration fill weight.

SY 14: qp Wrong UnitConfiguration 2nd weighbridge

2.2.2 Safety Indications SC

SC 01: FEEDER BLOCKEDFeeder blocked.

Feeder drive is blocked for more than set time,although drive signal is available.

SC 01: MAINTENANCEMaintenance interval reached.

System has reached the set number of operatinghours. Effect the recommended maintenancework.

2.2.3 Safety Indications WE

WE 01: POWER DOWNPower down.

Main mains switch switched off or power failure.When starting feeder, observe process-specificstart-up conditions and possible effects of failureon process.

WE 02: FEED DRIVE OVERLOADFeed drive overload.

Protective motor switch of feed drive has trigger-ed. Check motor, check load on belt. Observeprocess-specific start-up conditions.

WE 03: FEED DRIVE SCR FAILController feed drive.

Controller feed drive installed in drive unit is faulty.For trouble shooting, see manufacturer’s instruc-tions.

WE 04: CABLE SHORT OR INT.Cable breakage or short circuit.

Cable breakage or short circuit in a line withNAMUR limit switch.


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WE 05: PREFEEDER OVER LOADFeed drive overload.

WE 06: DRIVE 1 OVERLOADProtective motor switch auxiliary drive 1.

WE 07: DRIVE 2 OVERLOADProtective motor switch auxiliary drive 2.

WE 08: PREFEEDER SCR FAILController prefeeder drive.

Prefeeder controller installed in drive unit is faulty.For trouble-shooting, see manufacturer’s instruc-tions.

WE 09: PREFEEDER TEMP. HITemperature prefeeder drive.

Temperature of prefeeder drive is too high.

WE 10: ANALOGUE INPUT PError analog input “Set Feed Rate”.

Signal at analog input “Set Feed Rate” is out ofthe admissible range. Check connector, cabling,and setpoint generator.

WE 11: ANALOGUE INPUT HUMIDITYError analog input “Material Humidity”.

See WE 10.

WE 12: FEED DRIVE MAX TEMPFeed drive temperature too high.

Feed drive temperature ist too high. Protectiveswitch has broken circuit.

2.2.4 Safety Indications WM

WM 01: BELT TRACKINGBelt tracking.

Belt drifts extremely left or right. Correct func-tioning cannot be assured.

WM 02: BELT TENSIONWrong belt tension.

Belt tension is monitored by additional limitswitches. Check tension.

WM 03: BELT SLIPBelt slip out of tolerance.

Belt slip can be monitored by limit switches, twopulley sensors (K 3) or one belt sensor.

WM 04: BELT TRACKING LEFTBelt tracking left.

Belt drifts left of correct position. Position can bedisplayed as service value.

WM 05: BELT TRACKING RIGHTBelt tracking right.

Belt drifts right of correct position. Position can bedisplayed as service value.

2.2.5 Safety Indications MF

MF 01: BULK SOLID SENSORMaterial sensor flap.

A sensor flap for monitoring feed of material flowcan be mounted at the prefeeder. The messageis output if feeder is connected and no material isfed.


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MF 02: NO PREFEEDNo material after start-up.

Material flow during start-up phase is monitoredvia belt load. After the set time (minimum 10 s)belt load must have exceeded limit value qmin.

MF 03: MATERIAL > MAX.Material excess.

External contact (sensor flap) is closed. There istoo much material on conveyor belt..

2.2.6 Interlocking IL

IL 01: EMERGENCY STOPEmergency stop.

An emergency stop switch was operated.

IL 02: LOCAL MAIN SWITCHLocal main switch.

Signal “Local Main Switch” is not available.

IL 03: NO RELEASENo release.

Signals “Release 1 and 2" or signal ”Release 3"are not available or Local Mode is not active.

2.2.7 Controller CO

CO 01: DEVIATIONDeviation.

Deviation exceeds the limit set for the presetthreshold.

CO 02: SETPOINT LIMITEDSetpoint limit active.

Entered feed rate setpoint is too high and wasreduced to nominal feed rate, or emergency set-point was activated.

CO 03: CONTROLLER OUT LIMITThe controller control magnitude is limited.

Control magnitude of controller was limited to10 V, or 0 V. Frequent occurance can affectfeeding accuracy. Check material discharge andcontroller setting, check controller adaptation inFAE.

2.2.8 Check Measurement CH

CH 01: CHECK QUANTITY < MINComparative check amount too small.

Minimum check amount not reached.

CH 02: BIN LEVEL LOMinimum check fill weight.

Minimum check fill weight exceeded down.

CH 03: BIN LEVEL HIMaximum check fill weight.

Check supply quantity higher than set maximumcheck fill weight.

CH 04. CORRECTION 0 ABS HICorrection range “absolute zero point” exceeded.

Absolute zero point error higher than set limitvalue.

CH 05: CORRECTION 0 REL HICorrection range “zero point” relatively exceeded.

Relative zero point error higher than set limitvalue.

CH 06: CORR. SPAN ABS HICorrection range “span” absolutely exceeded.

Absolute span error higher than set limit value.

CH 07: CORR. SPAN REL HICorrection range “span” relatively exceeded.Relative span error higher than set limit value.


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CH 08: FEEDBACK PREFEEDERFeedback signal fill/discharge unit missing.

Feedback signal from check system is missing,fill/discharge unit of system not OFF.

CH 09: NO PERMISSIONCheck logged on.

Check system logged on, release signal notavailable.

CH 10: PREPARATION ACTIVEPrepare check system.

Check system is correctly prepared.

CH 11: ACCEPTANCE REQ.Check system waits for acknowledgement.

After computation phase, check system waits foracknowledgement. Accept correction by opera-ting key ENTER or reject with ESCAPE.

2.2.9 Calibration CA

CA 01: LC OUT < MINLoad cell input underamplified.

Input of load cell measuring amplifier is under-amplified. If message is repeated, check mecha-nical and electrical equipment.

CA 02: LC OUT > MAXLoad cell input overamplified.

Input of load cell measuring amplifier is overam-plified.

CA 03: PLL OVERFLOWPLL overflow.

Speed transducer of belt drive does not provideusable signal. Check speed transducer and cab-ling.

CA 04: SIMULATION ACTIVESimulator active.

Load cell signal, or speed simulation in Test Modeis connected.

CA 05: CHECK WEIGHT IN POS.Check weight in position while totalization is ON.

Check weight of automatic check system is inposition.

CA 06: BIC ASYNCHRONOUS

Pulse of belt marking is not received in the ex-pected time. Turn off BIC and check belt tension.

CA 07: LC BIN < MINLoad cell input “fill weight” underamplified.

CA 08: LC BIN > MAXLoad cell input “fill weight” overamplified.

CA 09: LC 2. WB < MINLoad cell input “2nd weighbridge” underamplified.

CA 10: LC 2. WB > MAXLoad cell input “2nd weighbridge” overamplified.


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2.2.10 MAX Limit Values HI

HI 01: FEEDRATE I HIActual feed rate higher PMAX.

Actual feed rate is higher than set maximum feedrate.

HI 02: LOAD Q HIBelt load exceeds qMAX.

Belt load exceeds set limit value.

HI 03: SPEED V HIBelt speed exceeds vMAX.

Belt speed exceeds set limit speed.

HI 04: BIN LEVEL HIFill weight exceeds BMAX.

Fill weight of supply bin exceeds set limit value.

HI 05: HUMIDITY HIHumidity higher MAX.

Humidity is higher than set limit value.

HI 06 Load 2nd WB>MAX2nd Weighbrdige

HI 07: |Q2-Q1| >MAX

Difference between the two weighbridge is toobig.

2.2.11 MIN Limit Values LO

LO 01: FEEDRATE I LOActual feed rate smaller PMIN.

Actual feed rate has fallen below set limit feedrate.

LO 02: LOAD Q LOBelt load smaller qMIN.

Belt load is smaller than set limit belt load.

LO 03: SPEED V LOBelt speed smaller vMIN.

Belt speed is smaller than set limit belt speed.

LO 04: BIN LEVEL LOFill weight smaller BMIN.

Fill weight has fallen below limit value BMIN.

LO 06: Load 2nd WB<MIN2nd Weighbridge


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