IRF2

5

RS 615 Ser.No. SPTO 1D6

O I

Uaux

30 ... 80 V _80 ... 265 V _

R

L

SG112

0 1

I

STEP

II

L1

L2

L3

[kA][kA][kA]

O

I

TESTINTERLOCK

[MW][Mvar][GWh, MWh, kWh]

PQE

RS 232

GAS PRESSURE

MOTOR VOLTAGE

fn = 50 60 Hz SPAC 315 CnI = /1 5 A( )oInI = /1 5 A( )I

[

SGR

SGB

SGF

SPCJ 4D29

TRIP

PROGRAM

RESETSTEP

L1 L2 L3 o IRF

3 >II

IIII

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0012

A

SPAC 315 C and SPAC 317 CFeeder terminals

Users manual and Technical description

21MRS 750117-MUM EN

Issued 1995-05-22Modified 2002-05-17Version BChecked MKApproved OL

Data subject to change without notice

SPAC 315 CSPAC 317 C

Feeder terminals

Features .......................................................................................................................... 3Area of application .......................................................................................................... 4Description of function .................................................................................................. 6

Design ....................................................................................................................... 6Protection functions .................................................................................................. 8Control functions ...................................................................................................... 9Measurement functions ........................................................................................... 10Supervision functions .............................................................................................. 10Serial communication .............................................................................................. 10Auxiliary power supply ............................................................................................ 10

Application ................................................................................................................... 11Mounting and dimension drawings ......................................................................... 11Connection diagram ................................................................................................ 12Signal diagram ......................................................................................................... 16Terminals and wiring .............................................................................................. 18

Commissioning ............................................................................................................ 19Technical data (modified 2002-05) ............................................................................... 20Exchange and spare parts .............................................................................................. 24Maintenance and repairs ............................................................................................... 24Order information ........................................................................................................ 25

The user's manual for the feeder terminals SPAC 315 C and SPAC 317 C is composed of thefollowing separate manuals:

Feeder terminal SPAC 315 C and SPAC 317 C, general part 1MRS 750117-MUM ENControl module SPTO 1D6 1MRS 750118-MUM ENGeneral characteristics of D type relay modules 1MRS 750066-MUM ENCombined overcurrent and earth-fault relay module SPCJ 4D29 1MRS 750119-MUM EN

Contents

3Features Complete feeder terminal with a three-phasetwo-stage overcurrent unit and a two-stage non-directional earth-fault unit

Definite time or inverse definite minimum time(IDMT) operation characteristic for the low-setstage of the overcurrent unit and the earth-faultunit

Instantaneous or definite time operation char-acteristic of the high-set stage of the overcurrentunit and the earth-fault unit

Continuous monitoring of energizing inputcurrent circuits

Continuous circuit breaker trip circuit supervi-sion

User-configurable feeder level interlocking sys-tem for preventing unpermitted switching op-erations

Local and remote status indication of threeswitching objects

Complete control module for local/remote con-trol of one switching object

Double-pole circuit-breaker control for addi-tional operational safety

Large library of pre-designed mimic diagramplates for presentation of the selected circuit-breaker/disconnector configuration

Phase current, energy, active and reactive powermeasurement and indication

Serial interface for connection of the feederterminal to a substation level and networkcontrol level systems

Continuous self-supervision for maximum sys-tem reliability and availability.

4OPTICAL SPA-BUS

SUBSTATION LEVEL DATA COMMUNICATOR

CONNECTION TO NETWORK CONTROL LEVEL

FEEDER TERMINAL FEEDER TERMINAL FEEDER TERMINAL

FEEDER TERMINAL

The feeder terminals type SPAC 315 C andSPAC 317 C are designed to be used as cubicle-oriented protection and local/remote controlinterface units. In addition to protection, con-trol and measurement functions the feeder ter-

minals are provided with the data communica-tion properties needed for the control of a feedercubicle. Connection to higher level substationcontrol equipment is carried out via a fibre-optical serial bus.

Fig. 1. Distributed protection and control system based on feeder terminals type SPAC 315 C andSPAC 317 C.

Regarding operational features the feeder termi-nals type SPAC 315 C and SPAC 317 C areidentical. The only difference between the twotypes is the rated current of the earth-faultprotection unit, see table below.

Type Rated energizing currents

OC unit EF unit

SPAC 315 C 1 A, 5 A 1 A, 5 ASPAC 317 C 1 A, 5 A 0.2 A, 1 A

The feeder terminals are intended for the selec-tive short-circuit and earth-fault protection ofradial feeders in solidly earthed, resistance earthedor impedance earthed power systems. The short-circuit and earth-fault protection is achieved bymeans of a combined overcurrent and earth-fault relay module.

The control module included in the feederterminal indicates locally by means of LEDindicators the status of 1 to 3 disconnectors orcircuit breakers. Further the module allows sta-tus information from the circuit breaker and the

disconnectors to be transmitted to the remotecontrol system, and one object, e.g. a circuitbreaker, to be opened and closed via the remotecontrol system. Single pole or double pole cir-cuit breaker control can be used. The statusinformation and the control signals are trans-mitted over the serial bus. Local control of oneobject is possible via push-buttons on the front-panel of the control module.

The control module measures and displays thethree phase currents. The active and reactivepower are measured over two mA-inputs. Exter-nal measuring transducers are needed. Energycalculations can be based on the measured powervalues or on using one binary input as an energypulse counter input. The measured values canbe displayed locally and remotely as scaled val-ues.

The protection relay module also measures andrecords the three phase currents and the neutralcurrent. All the measured and recorded valuescan be displayed locally and transmitted to theremote control system over the SPA bus.

Area ofapplication

5PROTECTION- PHASE OVERCURRENT- EARTH-FAULT

MEASUREMENT- PHASE CURRENTS- RESIDUAL CURRENT- ACTIVE AND REACTIVE POWER- ENERGY

SUPERVISION

- TRIP CIRCUIT- INPUT CURRENT MONITORING

CONTROL- CB AND DISCONNECTOR STATUS- CB LOCAL AND REMOTE CONTROL- DOUBLE/SINGLE POLE OPERATION - MIMIC DISPLAY- BLOCKINGS

I

O

O I READY

SIGNALLING

SERIALBUS

SPAC 315 C

IL1 / IL2 / IL3

Io

IPQE

3I>

I >

3D I/IN

TCS

Fig. 2. Basic functions of the feeder terminals type SPAC 315 C and SPAC 317 C.

6The feeder terminals type SPAC 315 C andSPAC 317 C include four withdrawable func-tional modules and one fixed functional module

each. The main functions of the modules arespecified in the following table.

Module Function

Protection relay module Phase overcurrent protection and earth-fault protection.SPCJ 4D29 Definite time or inverse time low-set overcurrent and earth-

fault protection, instantaneous or definite time high-set over-current and earth-fault protection.

Control module SPTO 1D6 Reads and displays locally and remotely status data of maxi-mum three disconnectors, CB trucks or CBs.Reads and displays locally and remotely max. six externalbinary signals.Three phase currents, active and reactive power and energyare measured and displayed locally and remotely.Transfers local or remote open and close commands for onecircuit breaker.

I/O module SPTR 2B17 or Includes 12 optically isolated binary inputs, trip and closeSPTR 2B18 output relays. Single-pole or double-pole circuit breaker

control and trip circuit supervision electronics.

Power supply module Forms the internal sypply voltages required by the otherSPGU 240A1 or SPGU 48B2 function modules.

Energizing input module Includes matching transformers and their tuning electronicsSPTE 4F6 in SPAC 315 C or for three phase currents and the neutral current.SPTE 4F9 in SPAC 317 C Includes the motherboard with four signalling output con-

tacts and the electronics for the mA inputs.Includes the Internal Relay Fault alarm output relay.

The combined phase overcurrent and earth-fault relay module SPCJ 4D29 is a Euro-size(100 mm x 160 mm) withdrawable unit.

The control module type SPTO 1D6 is alsowithdrawable. The control module includes twoPC boards; a CPU board and a front PC boardwhich are joined together.

The I/O module SPTR 2B_ is located behindthe front PC board and is fixed to the front PCboard by screws.

The power supply module SPGU 240A1 orSPGU 48B2 is located behind the front PCboard of the control module and can be with-drawn from the case after the control modulehas been removed.

The protection relay module SPCJ 4D29 isfastened to the relay case by means of two fingerscrews and the control module type SPTO 1D6by means of four finger screws.

These modules are removed by undoing thefinger screws and pulling the modules out of thealuminium case. Before the I/O module can beremoved the control module has to be with-drawn from the case and the screws holding theI/O module attached to the front PC board haveto be removed.

The energizing input module SPTE 4F6 orSPTE 4F9 is located behind the front PC boardof the control module on the left side of the case.A screw terminal block, the rear plate and themother PC board are connected to the energiz-ing input module.

The mother PC board contains the card connec-tors for the plug-in modules, the detachablemulti-pole connector strips of the inputs andoutputs, the tuning resistors of the secondaryburden of the matching transformers and theelectronics of the signal outputs and mA inputs.

Description offunction

Design

7Fig. 3. Block diagram for the feeder terminals type SPAC 315 C and SPAC 317 C

U1 Phase overcurrent and earth-fault relay module SPCJ 4D29U2 Control module SPTO 1D6U3 I/O module SPTR 2B17 or SPTR 2B18 for digital inputs and contact outputsU4 Power supply module SPGU 240A1 or SPGU 48B2U5 Energizing input module and motherboard SPTE 4F6 or SPTE 4F9X0 Screw terminal stripX1X3 Multi-pole connector stripsRx/Tx Serial communication port

The relay case is made of an extruded alumin-ium section, the collar is of cast aluminium andthe cover of clear UV-stabilized polycarbonate.The collar is fitted with a rubber gasket provid-ing an IP54 degree of protection by enclosurebetween the relay case and the mounting panel.

The cover of the case contains two push-buttonswhich can be used for scanning through thedisplays of the feeder terminal. To reset the

operation indicators of the protection and touse the local control push-buttons of the controlmodule, the front cover has to be opened.

The cover is locked with two finger screwswhich can be sealed to prevent unauthorizedaccess to the front panel. The rubber gasketbetween the cover and the collar ensures that thecover, too, complies with the IP54 require-ments. The opening angle of the cover is 145.

Rx/TxX3X1X0 X2

O I I P Q E

U2 U1U3U4U5

Io>Io >>

3I >3I>>

3D I/IN TCF

8The overcurrent unit of the combined overcur-rent and earth-fault relay module SPCJ 4D29has two operation stages, a low-set stage I> anda high-set stage I>>. The overcurrent unit meas-ures the three phase currents of the protectedsystem. The unit can also be used for two orsingle phase measurement.

When a phase current exceeds the set start valueof the low-set overcurrent stage, the overcurrentstage starts, simultaneously starting the corre-sponding timing circuit. When the set or calcu-lated operate time has elapsed, a trip commandis delivered. Correspondingly the high-set over-current stage starts when its start value is ex-ceeded. As the high-set stage starts it starts itstiming circuit and trips when the set operatetime has elapsed.

The low-set stage of the overcurrent unit can begiven definite time characteristic or inverse defi-

nite minimum time (IDMT) characteristic. Thehigh-set stage of the overcurrent unit can be setto operate instantaneously or it can be givendefinite time characteristic.

By appropriate configuration of the output relaymatrix the start signals can be obtained as con-tact functions. The start signals can be used, forinstance, as blocking signals for cooperatingprotection relays.

The combined overcurrent and earth-fault relaymodule contains one external control input,which is activated by an external control voltageapplied to the input CHANNEL 8. The influ-ence of the external blocking signal on the relaymodule is determined by the selector switches ofthe relay module. The control input can be usedfor blocking one or more of the protection stagesor for carrying out a trip command by means ofan external control signal.

The combined overcurrent and earth-fault relaymodule SPCJ 4D29 also includes a non-direc-tional two-stage earth-fault protection unit. Theearth-fault unit measures the residual current orneutral current of the protected system.

When the residual current exceeds the set startvalue of the low-set earth-fault stage, the earth-fault stage starts, simultaneously starting thecorresponding timing circuit. When the set orcalculated operate time has elapsed, a trip com-mand is delivered. Correspondingly the high-set earth-fault stage starts when its start value isexceeded. As the high-set stage starts it stars its

timing circuit and trips when the set operatetime has elapsed.

The low-set stage of the earth-fault unit may begiven definite time characteristic or inverse defi-nite minimum time (IDMT) characteristic. Thehigh-set stage of the earth-fault unit operateswith definite time characteristic.

The operation of the two earth-fault stages canbe blocked by feeding a control voltage to theexternal control input CHANNEL 8 of thefeeder terminal.

The tripping signal of the feeder terminal iswired to the OPEN output. Double-pole orsingle-pole circuit breaker control can be usedfor opening and closing of the circuit breaker.Single-pole circuit breaker control is used asstandard. If double-pole circuit breaker controlis to be used the interconnections of terminals96-97 of the OPEN circuit and terminals 98-99of the CLOSE circuit shoud be removed, see

Fig. 5.2. The trip OPEN circuit is continuouslysupervised by means of the constant currentinjection principle. The feeder terminal has fivesignalling contacts, one of which is the commoninternal relay failure (IRF) output. Four signal-ling outputs, SIGNAL 14, can be used toindicate starting or tripping of the protection,see chapter "Signal diagram".

Protectionfunctions

Phase overcurrentprotection

Earth-fault protection

Contact outputs ofthe protection

9The control module SPTO 1D6 is used forreading status information from circuit break-ers, CB trucks and disconnectors.The moduleindicates the status locally by means of LEDindicators and transfers the information to thesubstation level via the optical-fibre SPA bus.The status of maximum three objects can beindicated.

The control module is also used for controllingone object e.g. a circuit breaker, locally by means

of push-buttons on the front panel or with theopening or closing commands received over theSPA bus. Normally the double-pole controlprinciple is used for controlling the circuitbreaker.

In addition to status information the controlmodule can read other binary data, indicate theinformation locally and transfer it to the substa-tion level equipment. Six external binary signalscan be wired to the feeder terminal.

The control module uses input channels 13to read status information from circuit breakers,CB trucks and disconnectors. Each inputCHANNEL 13 is formed by two binaryinputs, one input is used for reading the openstatus and the other for reading the close statusof an object. This means that the status informa-tion must be wired to the feeder terminal asfour-pole message.

The front panel of the control module holds a4x4 LED matrix, which is used for status indi-cation of the circuit-breakers, CB trucks anddisconnectors of the feeder cubicle. At a time,three of these LEDs can be used for statusindication. The circuit breaker/CB truck/disconnector configuration indicated by theLEDs is freely configurable by the user.

One of the objects, the status of which is read viainputs CHANNEL 13 can be controlled withthe OPEN and CLOSE outputs.

The control module can be used for reading sixexternal and four internal binary signals. Theexternal signals, CHANNEL 49, can be sin-gle contact data wired from the switchgear cubi-cle and the internal signals, CHANNEL 1013,are start and trip signals of the protection relaymodule.

The inputs CHANNEL 413 can be confi-gured to be active at high state, i.e. input ener-gized, or active at low state, i.e. input notenergized.

The front panel has a local LED indication forthe external inputs CHANNEL 49. The redLED is normally lit when the input is active.

The inputs CHANNEL 413 can be used tocontrol the outputs OPEN, CLOSE and SIG-NAL 14. On activation of an input theconfigured OPEN or CLOSE output providesan output pulse, whereas the outputs SIG-NAL14 are continuously activated as long asthe concerned inputs are activated.

The control module includes a cubicle-orientedinterlocking which is freely programmable bythe user. By writing an interlocking program theuser defines under which circumstances thecontrolled object can be closed or opened. Whenan opening or closing command is given theinterlocking program is checked and after thatthe command is executed or canceled.

The interlocking can be so programmed that itconsiders the status of the four-pole inputsCHANNEL 13 and the inputs CHANNEL413. The trip signals of the protection relaymodule are not influenced by the interlocking.

To simplify commissioning the feeder terminalis provided with default interlocking schemes. Acertain default interlocking scheme is alwaysrelated to a certain circuit breaker/disconnectorconfiguration.

Normally the OPEN and CLOSE outputs arecontrolled by an open or close command givenby the operator. In the conditional direct outputcontrol outputs OPEN, CLOSE and SIGNAL14, can be controlled without an open or

close command given by the operator. In thiscase the outputs are controlled by the directoutput control program, which checks the sta-tus of the inputs CHANNEL 13, CHAN-NEL 413 and the R/L-key switch.

Control functions

General

Inputs CHANNEL13

Inputs CHANNEL49 andCHANNEL 1013

Interlocking

Conditional directoutput control

10

The control module SPTO 1D6 and the com-bined overcurrent and earth-fault relay moduleSPCJ 4D29 both measure analog signals.

The combined overcurrent and earth-fault relaymodule measures three phase currents and theneutral current. The module displays the cur-rent values locally and transmits the informa-tion via the SPA bus to the remote controlsystem. The protection relay module displaysthe measured values as multiples of the ratedcurrent of the used energizing input of thefeeder terminal.

The control module SPTO 1D6 measures fiveanalog signals; three phase currents, active andreactive power. The transforming ratio of theprimary current transformers can be keyed in tothe control module. In that way it is possible to

display the measured phase currents as primaryvalues.

The control module measures the active andreactive power via two mA inputs. Externalmeasuring transducers are to be utilized. ThemA signals are scaled to actual MW and Mvarvalues and the data is displayed locally and canbe transmitted to the remote control system.

Active energy is measured in two ways; either bycalculating the value from the measured powervalues or by using input CHANNEL 7 as a pulsecounter input. In the latter case an externalenergy meter with pulse output will be needed.In both cases the energy measurement value isdisplayed locally and can be transmitted to theremote control system.

Energizing current circuit monitoring and tripcircuit supervision are integrated into the con-trol module SPTO 1D6. The trip circuit, i.e. theOPEN circuit, is supervised using the constantcurrent injection principle. If the resistance ofthe trip circuit exceeds a preset level, because ofloose contacts, oxidation or circuit discontinu-

ity, an alarms signal is provided via outputSIGNAL 4.

The energizing current circuit monitoring func-tion monitors the input energizing currents andprovides an alarm signal if one or two of thephase currents are interrupted.

The feeder terminal includes two serial commu-nication ports, one on the front panel and theother on the rear panel.

The 9-pin RS 232 connection on the front panelis to be used for configuring the feeder terminaland determining the circuit breaker/CB truck/disconnector configuration, for loading the

feeder-oriented interlocking program and otherdata from a terminal or a PC.

The 9-pin RS 485 connection on the rear panelconnects the feeder terminal to the SPA bus. Anoptional bus connection module type SPA-ZC17 or SPA-ZC 21 is required.

For the operation of the feeder terminal asecured auxiliary voltage supply is needed. Thepower supply module SPGU240A1 or SPGU48B2 forms the voltages required by the protec-tion relay module, the control module and theinput/ output module.

The power supply module is a transformer con-nected, i.e. galvanically isolated primary andsecondary side, flyback-type dc/dc converter.The primary side of the power supply module is

protected with a slow 1 A fuse, F1, located onthe PC board of the control module.

A green LED indicator Uaux on the front panelis lit when the power supply module is in opera-tion. There are two versions of power supplymodules available. The secondary sides are iden-tical, only the input voltage range is different.The input voltage range is indicated on the frontpanel of the control module.

Measurementfunctions

Supervisionfunctions

Serialcommunication

Auxiliary powersupply

11

The feeder terminals are housed in a normallyflush mounted relay case. The feeder terminalsare fixed to the mounting panel by means of fourgalvanized sheet steel mounting brackets. The

feeder terminal can also be semi-flush mountedby means of optional raising frames. A surfacemounting case type SPA-ZX 316 is also avail-able.

Flush mounting case

226

162

136

196

252218

22

Panel cut-out

214 1

139

1

34

Surface mounting case

197

292

273

312

242

197 98

6

6

Fig. 4. Dimensional drawings for mounting cases of the feeder terminals type SPAC 315 C and typeSPAC 317 C

Application

Mounting anddimension drawings

12

Fig. 5.1. Connection diagram for the feeder terminal type SPAC 315 C. The circuit-breaker iscontrolled using the double-pole control principle.

X1

CHANNEL 8

(BS 1)

63

I

O

5A1A

123

5A1A

456

5A 1A

789

5A1A

252627

IL1

IL2

IL3

Io

X0

X2

61 62

( )( )

SPAC 315 C

L1 L2 L3

P1

P2

S1

S2

Uaux

CHANNEL 7

(E)

CHANNEL 6

CHANNEL 4

CHANNEL 5

CHANNEL 9

(BS 2)

IRF

X0

CHANNEL 3/I

CHANNEL 3/O

CHANNEL 2/I

CHANNEL 2/O

CHANNEL 1/I

CHANNEL 1/O

X3P

Q

U4

U5

U3

+ -

+

-

+

-

1

2

3

45

67

X2

1213

8

9

10

11

12

13

14

12

34

312

Rx

Tx

SPA-ZC_

SERIAL BUS,

RS 485

F

C

66

97

X0

86

99

X1

SIGNAL 2

SIGNAL 3

SIGNAL 1

45

67

89

E

D

98

85

G

1011

SIGNAL 4

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I >>

I >

OI

OI

OI

O I

U1

U2

Trip circuit supervision

U5

D I / IN

Rh(ext)

R>

AOPEN

CLOSE

B

hR (int)

3

96

65 -

-

Connectiondiagram

13

Fig. 5.2. Connection diagram for the feeder terminal type SPAC 317 C. The circuit-breaker iscontrolled using the single-pole control principle.

links are furnished at the factory. For trip circuitsupervision the proper polarity of the OPENcontact is important.

* Note!The single-pole circuit breaker control principlerequires external linking of the terminals to bedone, i.e. terminal 96 should be linked to termi-nal 97 and terminal 98 to terminal 99. These

X1

CHANNEL 8

(BS 1)

63

5A1A

123

5A1A

456

5A 1A

789

1A0.2A

252627

IL1

IL2

IL3

Io

X0

X2

61 62

( )( )

SPAC 317 C

L1 L2 L3

P1

P2

S1

S2

Uaux

CHANNEL 7

(E)

CHANNEL 6

CHANNEL 4

CHANNEL 5

CHANNEL 9

(BS 2)

IRF

X0

CHANNEL 3/I

CHANNEL 3/O

CHANNEL 2/I

CHANNEL 2/O

CHANNEL 1/I

CHANNEL 1/O

X3P

Q

U4

U5

U3

+ -

+

-

+

-

1

2

3

45

67

X2

1213

8

9

10

11

12

13

14

12

34

312

Rx

Tx

SPA-ZC_

SERIAL BUS,

RS 485

F

C

66

97

X0

86

99

X1

SIGNAL 2

SIGNAL 3

SIGNAL 1

45

67

89

E

D

98

85

G

1011

SIGNAL 4

3I>

3I>>

I >>

I >

OI

OI

OI

O I

U1

U2

Trip circuit supervision

U5

D I / IN

R>

AOPEN

CLOSE

B

hR (int)

3

96

65

*

*

I

O -

-R h(ext)

14

Terminal numbers:

Terminal Terminal Functionblock number

X0 1-2 Phase current IL1, 5 A1-3 Phase current IL1, 1 A4-5 Phase current IL2, 5 A4-6 Phase current IL2, 1 A7-8 Phase current IL3, 5 A7-9 Phase current IL3, 1 A

25-26 Neutral current I0, 5 A in SPAC 315 C and 1 A in SPAC 317 C25-27 Neutral current I0, 1 A in SPAC 315 C and 0.2 A in SPAC 317 C61-62 Auxiliary power supply. When dc supply voltage is used the posi-

tive pole is to be connected to terminal 6163 Equipment earth terminal65 OPEN output

Single-pole control: terminal 65 connects to CB OPEN coilDouble-pole control: terminal 65 connects to negative controlvoltage pole

66 OPEN outputDouble/Single-pole control: terminal 66 connects to positivecontrol voltage pole

96 OPEN outputSingle-pole control: terminal 96 connects to terminal 97Double-pole control: terminal 96 connects to CB OPEN coil

97 OPEN outputSingle-pole control: terminal 97 connects to terminal 96Double-pole control: terminal 97 connects to CB OPEN coil

85 CLOSE outputSingle-pole control: terminal 85 connects to CB CLOSE coilDouble-pole control: terminal 85 connects to negative controlvoltage pole

86 CLOSE outputDouble/Single-pole control: terminal 86 connects to positivecontrol voltage pole

98 CLOSE outputSingle-pole control: terminal 98 connects to terminal 99Double-pole control: terminal 96 connects to CB CLOSE coil

99 CLOSE outputSingle-pole control: term. 99 connects to terminal 98Double-pole control: term. 99 connects to CB CLOSE coil

X1 1-2-3 Self-supervision (IRF) signalling output. When auxiliary power isconnected and the device is operating properly the interval 2-3is closed

4-5 Signal output 4. E.g.alarm from energizing current monitoring andtrip circuit supervision or 3I> alarm or 3I>> alarm or I0> alarm orI0>> alarm, configured by user

6-7 Signal output 3, configured by user8-9 Signal output 2, configured by user

10-11 Signal output 1, configured by user12-13 Input CHANNEL 9

15

Terminal numbers:

Terminal Terminal Functionblock number

X2 1-5 Input CHANNEL 42-5 Input CHANNEL 53-5 Input CHANNEL 64-5 Input CHANNEL 7 or energy pulse counter input6-7 Input CHANNEL 8 or blocking input for the protection module

8-14 Input CHANNEL 1, open status. E.g. when a circuit breaker is openthe input must be energized

9-14 Input CHANNEL 1, closed status. E.g. when a circuit breaker isclosed the input must be energized

10-14 Input CHANNEL 2, open status11-14 Input CHANNEL 2, closed status12-14 Input CHANNEL 3, open status13-14 Input CHANNEL 3, closed status

X3 1-2 mA input for the measurement of active power3-4 mA input for the measurement of reactive power

The channel numbers mentioned above areused when the control module SPTO 1D6 is tobe configured. When the control module is

configured the following codes are used for theoutputs:

Output Terminal numbers Output code Output code for Conditionalfor interlocking Output Control

OPEN X0/66-97 20 220OPEN X0/65-96 20 220CLOSE X0/86-99 21 221CLOSE X0/85-98 21 221SIGNAL 1 X1/10-11 22 22SIGNAL 2 X1/8-9 23 23SIGNAL 3 X1/6-7 24 24SIGNAL 4 X1/4-5 25 25

16

input and output signals can be configured toobtain the required functions for the feederterminal.

The initial factory settings of the feeder terminalmay have to be changed in different applica-tions. The following diagram illustrates how the

SIG

NAL

3 (24

)SI

GNA

L 2

(23)

SIG

NAL

1 (22

)

CLO

SE (2

1)

OPE

N (20

)

(AR2

)

(AR1

)

(AR3

)

O I

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..91.

..3

IRF

OPE

N

SS1

TS1

TS2

SS3

SS2

IRF

CHAN

NELS

4...9

6

11

CHAN

NELS

1...3

6

IL1

IL2

Io

P

Q

SPTR 2B1_SPTE 4F_

SPTO

1D6

IL3

1 AD

CSI

GNA

L 1

SIG

NAL

211

SPTE 4F_

1 ESI

GNA

L 3

1 FSI

GNA

L 4

BCL

OSE

GIR

F

&

I P Q E

SIG

NAL

4 (25

)

SGR3

/ 1

SGR1

/ 1

SGR3

/ 2

SGR2

/ 1

SGR2

/ 2

SGR1

/ 2

SGR3

/ 3

SGR1

/ 3

SGR3

/ 4

SGR2

/ 3

SGR2

/ 4

SGR1

/ 4

SGR3

/ 5

SGR1

/ 5

SGR3

/ 6

SGR2

/ 5

SGR2

/ 6

SGR1

/ 6

SGR3

/ 7

SGR1

/ 7

SGR3

/ 8

SGR2

/ 7

SGR2

/ 8

SGR1

/ 8

I> Itt>

, k

to>,

ko

Io>

to

Io

SGB

/ 1

SGB

/ 2

SGB

/ 3

SGB

/ 4SG

B / 5

SGB

/ 8R

EMO

TE S

ETTI

NGS

REL

AY R

ESET

1

SGB

/ 6

RES

ET+

PRO

GRA

M

1

SGB

/ 7

RES

ET+

PRO

GRA

M

1

1

1

SGF1

/ 4

SPCJ

4D2

9

RES

ETTR

IP

t

SGF2

/ 8

SGF2

/ 7

BS

Fig. 6. Control signals between the modules of the feeder terminals type SPAC 315 C and typeSPAC 317 C

Signal diagram

17

The following table gives the default values of the switches shown in Fig. 6.

Switch Function Defaultvalue

SGB1/1 Forms from a control voltage applied to input 8 a blocking signal forthe tripping of the I> stage 0

SGB1/2 Forms from a control voltage applied to input 8 a blocking signal forthe tripping of the I>> stage 0

SGB1/3 Forms from a control voltage applied to input 8 a blocking signal forthe tripping of the I0> stage 0

SGB1/4 Forms from a control voltage applied to input 8 a blocking signal forthe tripping of the I0>> stage 0

SGB1/5 Enables switching from protection main settings to second settings byapplying an external control voltage to input 8 0

SGB1/6 Selects a latching function for the trip signal TS2 at overcurrent faults 0SGB1/7 Selects a latching function for the trip signal TS2 at earth-faults 0SGB1/8 Enables remote resetting of latched output relays and re-corded values

by an external control voltage on input 8 0

SGR1/1 Routes the start signal of stage I> to the SIGNAL 1 output 1SGR1/2 Routes the trip signal of stage I> to the OPEN output 1SGR1/3 Routes the start signal of stage I>> to the SIGNAL 1 output 0SGR1/4 Routes the trip signal of stage I>> to the OPEN output 1SGR1/5 Routes the start signal of stage I0> to the SIGNAL 1 output 0SGR1/6 Routes the trip signal of stage I0> to the OPEN output 1SGR1/7 Routes the start signal of stage I0>> to the SIGNAL 1 output 0SGR1/8 Routes the trip signal of stage I0>> to the OPEN output 1

SGR2/1 Routes the trip signal of stage I> to the SIGNAL 3 output 1SGR2/2 Routes the trip signal of stage I> to the SIGNAL 4 output 0SGR2/3 Routes the trip signal of stage I>> to the SIGNAL 3 output 1SGR2/4 Routes the trip signal of stage I>> to the SIGNAL 4 output 0SGR2/5 Routes the trip signal of stage I0> to the SIGNAL 3 output 0SGR2/6 Routes the trip signal of stage I0> to the SIGNAL 4 output 1SGR2/7 Routes the trip signal of stage I0>> to the SIGNAL 3 output 0SGR2/8 Routes the trip signal of stage I0>> to the SIGNAL 4 output 1

SGR3/1 Routes the start signal of stage I> to the SIGNAL 2 output 0SGR3/2 Routes the trip signal of stage I> to the SIGNAL 2 output 0SGR3/3 Routes the start signal of stage I>> to the SIGNAL 2 output 0SGR3/4 Routes the trip signal of stage I>> to the SIGNAL 2 output 0SGR3/5 Routes the start signal of stage I0> to the SIGNAL 2 output 0SGR3/6 Routes the trip signal of stage I0> to the SIGNAL 2 output 0SGR3/7 Routes the start signal of stage I0>> to the SIGNAL 2 output 0SGR3/8 Routes the trip signal of stage I0>> to the SIGNAL 2 output 0

SGF1/1 Switches SGF1/13 are used for selecting the required operation 0SGF1/2 characteristic of the low-set overcurrent stage I>, i.e. definite time or 0SGF1/3 inverse time (IDMT) characteristic. Further selection at inverse time 0

characteristic: standard inverse, very inverse, extremely inverse or long-time inverse.

SGF1/4 Selection of circuit breaker failure protection function 0SGF1/5 Selection of automatic doubling of the set start value of stage I>> at

energization of the protected object 0SGF1/6 Switches SGF1/68 are used for selecting the required ope- 0SGF1/7 ration characteristic of the low-set earth-fault stage I0>, i.e. definite time 0SGF1/8 or inverse time (IDMT) characteristic. Further selection at inverse time 0

characteristic: standard inverse, very inverse, extremely inverse or long-time inverse.

18

1

2

3

4

5

6

7

8

9

25

26

27

X01234567891011121314

X2

1234

X3

1234567891011

X1

RxTx

= 63R

S 48

5

61

62

63

65

66

86

98

99

8512

13

96

97

Fig. 7. Rear view of the feeder terminals type SPAC 315 C and type SPAC 317 C

All external conductors are connected to theterminal blocks on the rear panel. Terminalblock X0 is a fix-mounted screw terminal blockfastened to the energizing input module. Theconnectors X1X3 are detachable-type multi-pole connector strips equally with screw termi-nals.

The male part of the multi-pole connector stripsare attached to the mother PC board. Thefemale parts of the detachable connector stripsare delivered as loos parts together with thefeeder terminal. The position of the femaleconnector strips can be secured by means offixing accessories and screws at the ends of theconnector.

The measuring signal inputs, auxiliary voltagesupply and OPEN and CLOSE contact outputsare connected to the terminal block X0. Eachterminal is dimensioned for one 4 mm2 or two2.5 mm2 wires. The pilot wires are fastened withM 3.5 Phillips cross-slotted screws, recess type H.

The signalling contact outputs are connected tothe multi-pole connector X1. The inputsCHANNEL13 and CHANNEL48 areconnected via connector X2. Input CHAN-NEL9 is wired via connector X1 and the two mAinputs via connector X3. One max. 1.5 mm2

wire or two max. 0.75 mm2 wires can be beconnected to one screw terminal.

The rear panel of the feeder terminal is providedwith a serial interface for the SPA bus (RS 485).Two types of bus connection modules are avail-able. The bus connection module type SPA-ZC21 is fitted directly to the 9-pin D-typesubminiature connector. The bus connectionmodule SPA-ZC17 includes a connection cablewith a D-type connector. Thus the connectionmodule can be installed at a suitable place in theswitchgear cubicle within the reach of the con-nection cable.

Terminalsand wiring

19

The programming can be done via the frontpanel RS 232 port or the rear panel RS 485 portby using the SPA protocol. Detailed instruc-tions are given in the manual of the controlmodule SPTO 1D6.

4. Settings of the overcurrent and earth-faultrelay module SPCJ 4D29

The overcurrent and earth-fault relay modulehas been given default setting values at thefactory. The start current and operate timeparameters are set at their minimum values. Thedefault checksum values for the switchgroupsare:

Switchgroups (checksums)

SGB 0SGF1 0SGR1 171SGR2 165SGR3 0

The values can be changed manually from thepush-buttons on the front panel of the protec-tion module. Also the RS 232 interface on thefront panel of the control module or the RS 485interface on the rear panel of the feeder terminalcan be used for changing the settings of theovercurrent and earth-fault relay module usingcommand according to the SPA protocol.

The exact meaning of the switchgroups is ex-plained in the manual of the combined phaseovercurrent and earth-fault protection relaymodule SPCJ 4D29.

Commissioning of the feeder terminal shouldbe done in accordance with to the followinginstructions. Checks1 and 2 have to be per-formed before the auxiliary power supply isswitched on.

1. Control voltage ranges of the binary inputs

Before connecting a voltage to inputs CHAN-NEL19, check the permitted control voltagerange of the inputs. The voltage range, Uaux, ismarked up on the front panel of the controlmodule.

2. Auxiliary supply voltage

Before switching on the auxiliary supply voltagecheck the permitted input voltage range of thepower supply module. The voltage range, Uaux,is marked up on the front panel of the controlmodule.

3. Configuration of the control moduleSPTO 1D6

All parameters of the non-volatile EEPROMshave been given default values after factorytesting. "Configuration and interlocking schemeNo. 1" has been selected. The default parametervalues are shown in the manual of the controlmodule SPTO 1D6.

If the default parameters have to be changed, thefollowing parameters can be altered:

- Configuration; default configuration or user-definable configuration

- Interlocking; default interlocking or user-de-finable interlocking

- OPEN and CLOSE outputs; pulse lengths- Measurements; ratio of primary current trans-

formers, settings for active and reactive powermeasurement, settings for energy measure-ment

- Inputs CHANNEL413; specification ofactivation conditions and configuration ofoutputs

- Inputs CHANNEL49; latching functionof indicators

- Event reporting; event masks, event delaytimes

- Supervision; settings for energizing inputmonitoring and trip circuit supervision

Commissioning

20

Energizing inputs Rated currents InOvercurrent unit of SPAC 315 C and SPAC 317 CPhase current inputs X0/1-3, X0/1-2,

4-6, 7-9 4-5, 7-8Rated curent In 1 A 5 AEarth-fault unit of SPAC 315 CNeutral current inputs X0/25-27 X0/25-26Rated current In 1 A 5 AEarth-fault unit of SPAC 317 CNeutral current inputs X0/25-27 X0/25-26Rated current In 0.2 A 1 AThermal withstand capability- continuous 1.5 A 4 A 20 A- for 1s 20 A 100 A 500 ADynamic current withstand,- half-wave value 50 A 250 A 1250 AInput impedance

21

Blocking input, CHANNEL 8Terminal numbers X2/6-7Input voltage range- input module type SPTR 2B17 80265V dc- input module type SPTR 2B18 3080 V dcCurrent consumption at activation

22

Combined overcurrent and earth-fault module SPCJ 4D29Phase overcurrent unitLow-set overcurrent stage I> *Start current **- at definite time characteristic 0.5...5.0 x In- at inverse time characteristic *** 0.52.5 x InTime/current characteristic- definite time characteristic

- operate time t> 0.05...300 s- inverse definite minimum time (IDMT)

characteristic as per IEC 60255-3 and BS 142 Extremely inverseVery inverseNormal inverseLong-time inverse

- special type inverse characteristic RI-type inverseRXIDG-type inverse

- time multiplier k 0.05...1.0

High-set overcurrent stage I>> *Start current 0.5...40 x In and , infiniteOperate time t>> 0.04...300 s

Earth-fault unitLow-set earth-fault stage I0> ****Start current 0.1...0.8 x InTime/current characteristic- definite time characteristic

- operate time t0> 0.05...300 s- inverse definite minimum time (IDMT)

characteristic as per IEC 60255-3 and BS 142 Extremely inverseVery inverseNormal inverseLong-time inverse

- special type inverse characteristic RI-type inverseRXIDG-type inverse

- time multiplier k0 0.05...1.0

High-set earth-fault stage I0>> ****Start current 0.1...10.0 x In and , infiniteOperate time t0>> 0.05... 300 s

* Note!When the high-set overcurrent stage I>> starts the operation of the low-set overcurrent stage I> isinhibited. Consequently, the operate time of the relay equals the set operate time t>> at any faultcurrent level over the set start current I>>. In order to obtain a trip signal, the high-set overcurrentstage I>> must be routed to a trip output relay.

** Note!If the set start current exceeds 2.5 x In, the maximum continuous carry of the energizing inputs(4 x In) must be noted.

*** CAUTION!Never use start current settings above 2.5 x In at inverse time operation although allowed by therelay.

**** Note!When the high-set earth-fault stage I0>> starts the operation of the low-set earth-fault stage I0> isinhibited. Consequently, the operate time of the relay equals the set operate time t0>> at any faultcurrent level over the set start current I0>>. In order to obtain a trip signal, the high-set earth-faultstage I0>> must be routed to a trip output relay.

23

Control module SPTO 1D6Control functions- status indication for maximum three objects

(e.g. circuit breakers, CB trucks, disconnectors, earth switches)- user configurable configuration- remote or local control (open and close) for one object- user-configurable cubicle-related interlocking scheme

Measurement functions- phase currents, measuring range 02.5 x In- phase current measuring accuracy better than 1% of In- active and reactive power measurement via mA-inputs,

external measuring transducers are needed- mA measuring input current range -20 mA020 mA- power measuring accuracy better than 1% of maximum value of measuring range- energy measurement via pulse counter input or by calculating of measured power- local and remote reading of measured data as scaled values

Supervision functions- energizing current input supervision- trip circuit supervision- internal self-supervision

Data communicationRear panelConnection RS 485, 9-pin, femaleBus connection module for rear connection- for plastic-core optical fibres SPA-ZC21C BB- for glass-fibre optical fibres SPA-ZC21C MMBus connection module for separate mounting- for plastic-core optical fibres SPA-ZC17C BB- for glass-fibre optical fibres SPA-ZC17C MMFront panelConnection RS 232, 9-pin, femaleData code ASCIISelectable data transfer rates 4800 or 9600 Bd

Insulation Tests *)Dielectric test IEC 60255-5 2 kV, 50 Hz, 1 minImpulse voltage test IEC 60255-5 5 kV, 1.2/50 s, 0.5 JInsulation resistance measurement IEC 60255-5 >100 M, 500 Vdc

Electromagnetic Compatibility Tests *)High-frequency (1 MHz) burst disturbance testIEC 60255-22-1- common mode 2.5 kV- differential mode 1.0 kVElectrostatic discharge test IEC 60255-22-2 andIEC 61000-4-2- contact discharge 6 kV- air discharge 8 kVFast transient disturbance test IEC 60255-22-4and IEC 61000-4-4- power supply 4 kV- I/O ports 2 kV

*) The tests do not apply to the serial port, which is used exclusively for the bus connection module.

24

Control module SPTO 1D6Combined overcurrent and earth-fault relay module SPCJ 4D29I/O module, input voltage range 80265 V dc SPTR 2B17I/O module, input voltage range 3080 V dc SPTR 2B18Power supply module, 80265 V ac or dc SPGU 240A1Power supply module, 1880 V dc SPGU 48B2Housing without plug in modules,feeder terminal SPAC 315 C SPTK 4F6feeder terminal SPAC 317 C SPTK 4F9

When the protection relay is operating underthe conditions specified in the section "Techni-cal data", the relay is practically maintenance-free. The relay modules include no parts orcomponents subject to an abnormal physical orelectrical ware under normal operation condi-tions.

If the environmental conditions at the relayoperation site differ from those specified, as totemperature and humidity, or, if the atmos-phere around the relay contains chemically ac-tive gases or dust, the relay should be visuallyinspected in association with the relay second-ary test being performed. At the visual inspec-tion the following things should be noted:

- Check for signs of mechanical damage onrelay case or terminals

- Check for dust inside the relay case or thecover of the relay case; remove by blowingpressurized air carefully

- Check for rust spots or signs of erugo onterminals, relay case or inside the relay.

If the relay fails in operation or if the operationvalues differ too much from those of the relayspecifications the relay should be given a properoverhaul. Minor measures can be taken by per-sonnel from the operator's instrument work-shop but all major measures involving overhaulof the electronics are to be taken by themanufactrer. Please, contact the manufactureror his nearest representative for further informa-tion about checking, overhaul and recalibrationof the relay.

Note!Static protection devices are measuring instru-ments which should be handled with care andprotected against moisture and mechanical stress,especially during transport.

Exchange andspare parts

Maintenanceand repairs

Environmental conditionsSpecified ambient service temperature -10+55CTransport and storage temperature range -40...+70CLong term damp heat withstand accordingto IEC 60068- 2- 3

25

The following information should be given when ordering feeder terminals.

1. Quantity and type designation 15 units, feeder terminal SPAC 315 C2. Rated frequency fn= 50 Hz3. Auxiliary supply voltage Uaux=110 V dc4. Type designation of the configuration plate SYKK 9125. Accessories 15 units, connection module SPA-ZC 21BB

Four empty legend text films SYKU 997 forchannel 49 indication are included in thefeeder terminal delivery.

As different configuration plates are availablefor the feeder terminals SPAC 315 C and SPAC317 C the type designation of the configurationplate should be stated in the order.

912B

CB truckindicator 109

CBindicator 110

Earth-switchindicator 116

954B

CB truckindicator 106

CBindicator 107

Earth-switchindicator 104

There are two parallel configuration plates forone circuit breaker/disconnector configuration;in the first type the closed status is indicated byred colour and open status by green colour, inthe second type the colours are the opposite.

The following some standard configurationplates are illustrated.

Configuration plate type SYKK 912Open position = greenClose position = red

Configuration plate type SYKK 954Open position = red

Close position = green

1013

CB truck,indicator 101

CB,indicator 102

982

CB truck,indicator 106

CB,indicator 107

Configuration plate type SYKK 1013Open position = greenClose position = red

Configuration plate type SYKK 982Open position = redClose position = green

Fig. 8. Standard configuration plates for the feeder terminals SPAC 315 C and SPAC 317 C

Note! On delivery the control module is giventhe "Configuration and interlocking scheme

No. 1", regardless of the type of configurationplate delivered with the control module.

Order information

IRF2

5

RS 615 Ser.No. SPTO 1D6

O I

Uaux

30 ... 80 V _80 ... 265 V _

R

L

SG112

0 1

I

STEP

II

L1

L2

L3

[kA][kA][kA]

O

I

TESTINTERLOCK

[MW][Mvar][GWh, MWh, kWh]

PQE

RS 232

GAS PRESSURE

MOTOR VOLTAGE

fn = 50 60 Hz SPAC 3__ CnI = /0,2 1 A( )oInI = /1 5 A( )I

SPTO 1D6Control module

Users manual and Technical description

21MRS 750118-MUM EN

Issued 95-08-31Modified 97-05-06Version CChecked TKApproved TK

Data subject to change without notice

SPTO 1D6Control module

Contents Description of functions ................................................................................................. 3Control functions ...................................................................................................... 3Measurement functions ............................................................................................. 3Supervision functions (modified 96-02) ..................................................................... 4Block schematic diagram ........................................................................................... 7

Front panel ..................................................................................................................... 8Object status indicators ............................................................................................. 8Indicators for input channels 4...9 ............................................................................. 9Operation indicators .................................................................................................. 9Local/Remote key switch ......................................................................................... 10Push-buttons for Select , Close I and Open O ..................................................... 10Switchgroup SG1 .................................................................................................... 10Display of measured values and serial data communicator parameters(modified 97-05) ...................................................................................................... 11Alarm indications of supervision functions .............................................................. 13RS 232 interface ...................................................................................................... 13

Setting .......................................................................................................................... 14Configuration .......................................................................................................... 14Interlocking ............................................................................................................. 17Conditional Direct Output Control ........................................................................ 20Input channels 4...13 ............................................................................................... 21Outputs ................................................................................................................... 22Scaling of measured values ....................................................................................... 23Energy measurement by integration ........................................................................ 24Event codes .............................................................................................................. 25Quick reference for setting ...................................................................................... 27Serial communication parameters (modified 96-02) ................................................ 28Default values of parameters .................................................................................... 34

Technical data ............................................................................................................... 35Appendix 1, Default configuration and interlocking 1 .................................................. 36Appendix 2, Default configuration and interlocking 2 .................................................. 37Appendix 3, Default configuration and interlocking 10................................................ 38

3Description offunctions

Control functions

The control module type SPTO 1D6 is usedfor reading binary input signals and for localand remote status indication of the binary sig-nals. The control module also executes open andclose commands for controllable switching de-vices of the switchgear.

The input channels 1...3 are used for readingstatus information of the switching devices, i.e.circuit breakers and disconnectors here aftercalled objects. Each of these channels includestwo physical inputs, one for the "object open"and one for the "object closed" information. Thecontrol module indicates the status informationlocally on the front panel by means of LEDindicators and transfers the status informationto the substation level communication equip-ment using the SPA serial bus.

The control module reads the status informa-tion of max. 3 objects. The front panel of thecontrol module is provided with a LED matrixused for object status indication. The object sta-tus indication LEDs of the control module arefreely configurable by the user to match the com-binations of switching devices of the switchgearcubicles.

Input channels 4...13 consist of single binaryinput circuits. These channels are basically usedfor transferring binary signals, other than cir-cuit breaker and disconnector status informa-tion signals, over the SPA bus to the substationlevel system. The status of input channels 4...9

is indicated locally by LEDs on the front panelof the control module.

The control module is capable of providing openand close commands for one switching object.The commands may be given via the local push-buttons on the front panel, the SPA serial busor the input channels 4...13. The length of thepulse-shaped open or close signals can be deter-mined by the user.

An enable signal must be given by the inter-locking program before an open or close pulsecan be delivered. The enable signal is control-led by the status of input channels 1...3 and4...13 and the interlocking program written bythe user.

The signal outputs, signal 1...4, can be used forindicating the status of the input channels 4...13.The selected output is active as long as the in-put channel is in an active state.

The open, close or signal 1...4 outputs can becontrolled by the Direct Output Control pro-gram. This program resembles the interlockingprogram. The user can define under which cir-cumstances an output is to be activated. Thiscontrol of an output is determined by the sta-tus of input channels 1...3 and 4...13, the posi-tion of the local/remote key switch and the Di-rect Output Control program written by theuser.

Measurementfunctions

The control module SPTO 1D6 measures threephase currents and two mA signals. The mAinputs are used for measuring active and reac-tive power. External measuring transducers areneeded. The input channel 7 can be used as apulse counter for energy pulses. Energy can also

be calculated by integrating the measured powervalues over time.

The measured signal values can be scaled fordisplay locally and for remote transfer over theSPA bus as primary values.

4Supervisionfunctions

The trip circuit supervision function and theenergizing current monitoring function can belocally disabled by turning switch switch SG1/2on the front panel in position 1. The locally

performed selection in the control module over-rides the selection made over the SPA bus, us-ing parameters S200 and S202.

Trip circuitsupervision(modified 96-02)

The trip circuit supervision unit in the controlmodule consists of three functional units; a con-stant current generator, a measuring and timedelay circuit and an output circuit for signal-ling. The input/output circuits are galvanicallyisolated from each other. The constant currentgenerator forces a 1.5 mA measuring current toflow through the circuit breaker trip circuit. Theconstant current generator is connected over theOPEN contact of the feeder terminal circuit.Under no-fault conditions the voltage over theOPEN contact or the constant current genera-tor must exceed 30 V dc, when the voltage dropcaused by the 1.5 mA measuring current in otherparts of the supervised circuit are observed.

Mathematically the operation condition can beexpressed as:

Uc - (Rh(ext.) + Rh(int.) + Rs) x Ic 30 V dc(Formula 1)

whereUc = operating voltage over the supervised

trip circuitIc = measuring current through the trip

circuit, approximately 1.5 mARh(ext.) = external shunt resistor valueRh(int.) = internal shunt resistor value, 1 kRs = trip coil resistance value

The resistor Rh(ext.) must be so calculated thatthe trip circuit supervision current through theresistor is low enough to leave the trip coil ofthe circuit breaker unaffected. On the otherhand the voltage drop over the resistor Rh(ext.)must not be too high to jeopardize the operat-ing condition presented in Formula 1 above.

The following values are recommended for re-sistor Rh(ext.) in figure 1:

Operating voltage Uc Shunt resistorRh(ext.)

48 V dc 1.2 k, 5 W60 V dc 5.6 k, 5 W

110 V dc 22 k, 5 W220 V dc 33 k, 5 W

5Fig. 1. Operating principle of the supervision function of the trip circuit

The supervision of the trip circuit is based onthe constant current injection principle. If theresistance of the trip circuit, e.g. because of loosecontacts or oxidation, exceeds a certain limit orif the OPEN contact has welded, the voltageover the OPEN contact goes below 30 V dc andthe supervision function of the trip circuit isactivated. If the fault persists, a trip circuit su-pervision alarm signal in the form of a flashing"O.C.F." message (Open Circuit Fault) on thedisplay is obtained after the preset 3 s delay time.By default the alarm signal is connected to thealarm output contact SIGNAL 4. If this outputcontact is already used as an alarm output ofe.g. earth fault protection, by setting parameterS200= 2, the trip circuit supervision alarm canbe configured so that only display alarm andevent is generated.

The fault message can be locally acknowledgedby pressing the push-buttons STEP and SE-LECT simultaneously for about 1 s.

Note!Only the display indication needs acknowledg-ing, not the alarm signal output. The alarmoutput will reset automatically when the faultdisappears.

As a default and to avoid unnecessary alarms,the function of the trip circuit supervision isblocked when the trip signal TS2 initiated bythe protection module is activated, that is whenthe OPEN contact is closed. The trip circuitsupervision is also automatically disabled whenthe circuit breaker is withdrawn, i.e. when thefour-pole status of both CB and CB truck indi-cate "undefined" status (no voltage at binarystatus inputs). . The CB truck is defined by value"11" for object type on the configuration com-mand line. Further, in case of removed CB, theflashing position indicators of CB and CB truckshowing undefined status, can be set to beswitched off after 10 min timeout. This can bedone with parameter S7.

&

SG1/2=0

3s

O.C.F.

S200>0I

O

I>

+Uc

-Uc

66

97

96

65

Rh(ext)

Rh(int)

U>30V

SPAC 3__

S200=1

STEP+

OPEN

SIGNAL4

OPEN

6Energizing currentinput circuitsupervision(modified 96-02)

The supervision function of the energizing cur-rent input circuit detects interruptions of theenergizing circuit. The supervision unit can begiven a two-phase or three-phase function withparameter S203. The supervision is based oncomparison between the measured phase cur-rents. If one or two phase currents exceed 12%of the rated value In, while in one or two phasesthe measured phase current is below 6% of therated current In, an alarm is given in the formof a flashing "C.I.F" message (Current InputFault) on the display after a set operate timedelay. By default the alarm signal is connectedto the alarm output contact SIGNAL 4. If thisoutput contact is already used as an alarm out-put of e.g. earth fault protection, by setting pa-rameter S202 = 2, the energizing current inputsupervision alarm can be configured so that onlydisplay alarm and event is generated.

The operate time delay can be set with param-eter S204 in the range of 3...60 s. The defaultvalue is 15 s. The monitoring function is disa-bled if all input currents are under 6% of In.The fault message can be locally acknowledgedby pressing the push-buttons STEP and SE-LECT simultaneously.

Note!Only the display indication needs acknowledg-ing, not the alarm signal output. The alarmoutput will reset automatically when the faultdisappears.

The phase current values can be called up onthe display by means of the STEP push-but-ton.

Fig. 2. Principle of the supervision function of the energizing current input circuit.

0.12xIn

0.12xIn

0.12xIn

>1

0.06xIn

0.06xIn

0.06xIn

IL1

IL2

IL3

&

SG1/2=0

3...60s

S204

C.I.F.STEP+SELECT

S202>0

S202=1

>1

SIGNAL4

7Channels13

Channels413

t

Open /Close

Chann.49

Signal

output

control

Signal

13

Enable

SPA-bus

Readstatus

Open/closeoutputcontrol

Inter-locking

Readstatus

I O

SPA-bus

SPA-bus

Indication

Conditionaldirectoutputcontrol

Indication

1

1

Readstatus

Remote / Local-key switch

3I

SPTO 1D6

Indication

Q (mA2)

P (mA1)Measure-

ment

E ( )

SPA-bus

Channel 7

1

3I 3I/In

Readstatus

Trip

circuit

supervision

Signal 4R >

&

Block schematicdiagram

Fig. 3. Block schematic diagram of the control module SPTO 1D6.

8Front panel

Fig. 4. Front panel of the control module SPTO 1D6 without the configuration plate SYKK _ andthe channel legend text foil SYKU 997.

Object statusindicators

The front panel includes 16 indicator units witheach four rectangular LED indicators, two greenand two red. The indicator units are used forlocal status indication of the circuit breakers anddisconnectors of the switchgear cubicle. In thecontrol module SPTO 1D6 three of the 16 in-dicator units can be utilized at a time. The indi-cator units to be used are freely selectable bythe user, see chapter "Configuration".

A plastic configuration plate type SYKK_ witha printed mimic diagram is inserted into apocket in front of the object indicator units. Thebottom of the pocket is open. By selecting aproper configuration plate and by configuringa new combination of indicator units differentobject configurations of the switchgear cubiclecan be handled.

The configuration plate shows the combinationof circuit breakers and disconnectors of theswitchgear cubicle. The configuration plate fea-tures transparent windows for the status indi-cators that are in use. The status indicators notin use are hidden.

One indicator unit consists of four LEDs, twovertical and two horizontal. Two of the LEDsare red and two are green. The red LEDs arevertically and the green LEDs horizontally ar-ranged in columns 1 and 3, see Fig. 5. In col-umns 2 and 4 the green LEDs are vertically andthe red LEDs horizontally arranged. Due to this

system both colours can be used to indicate ei-ther the open or closed status of a switchingdevice.

Fig. 5. Example of a plastic configuration plateSYKK __. The actual size of the configurationplate is 72mm x 106.5 mm.

912B

5 IRFOI

Serial No.

I

O

STEP

SG112Uaux

80265 V_3080 V_

TEST

2

0 1

P [MW]Q [MVar]

IL1 [kA]IL2 [kA]IL3 [kA]

E [GWh,MWh,kWh]

RS 615

R

L

fn= 50 60 HzIn = 1 / 5 A (I)In = 0.2 / 1 A (Io) SPAC 3_ _C

INTERLOCK

RS 232

SPTO 1D6

SelectClose andOpenpush-buttons

Operation indicators;output test and interlockedoperation

Indicators for inputchannels 49The pocket for channellegend text film SYKU 997

Remote/Local key switchIndicators for remote andlocal mode

Indicator for auxiliary power supplyVoltage range of powersupply and binary inputs

Type designation andrated values of the relaypackage

Simplified device symbol

Display for measured values

Self-supervisionalarm indicator

Display step push-button

Indicators for value currently on display

SelectorSwitchgroup SG1

RS 232 interface

Type designationof the module

Object status indication matrixThe pocket for configuration plate SYKK _

IO

9CB CONDITION

GAS PRESSURE

MOTOR VOLTAGE

CB CONDITIONGAS PRESS.MOTOR VOLT.

Drawn with1,8 mmlettering guide

Drawn with2,5 mmlettering guide

Indicators for inputchannels 4...9

The status of the input channels 4...9 is indi-cated locally by LEDs on the front panel. Chan-nel 4 is indicated by the topmost LED andchannel 9 by the bottom LED.

An input can be defined to be active when theinput signal is high (controlled by NO contact)or active when the input signal is low (control-led by NC contact). The LED is lit when theinput is active.

The indication of the active status of the inputchannels 4...9 can separately be programmed

to be memory controlled. If an input channelindicator is memory controlled the LED indi-cator remains lit until the channel is locally re-set by pressing the push-buttons STEP andSELECT simultaneously or by remote controlvia the serial interface using the parameter S5,which is given the value 0 or 1.

The front panel includes a pocket for the textlegend foil SYKU 997 on which the user canwrite the input channel texts. An clear text foilis delivered with the feeder terminal.

Fig. 6. Example of a text foil type SYKU 997. The foil is shown in its natural size, width 33.5 mmand height 34 mm.

Operation indicators The control module features two red operationindicators which show the status of the module

itself. These LEDs are normally dark. The indi-cators have the following functions:

Indicator Function

TEST The LED is lit when the switch SG1/1=1. In this position the interlockingfunctions are out of use.

INTERLOCK The LED is lit when a control command is given locally but the control ofthe object is prohibited by the interlocking program. The LED indicator canbe switched off by pushing the SELECT button but it is also automaticallyswitched off after about 30 s.

When the control module is in the programming mode and the interlockingsare in use the indicator lights and it is switched off when the operation modeis entered or when the interlockings are set out of use.

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Local/Remotekey switch

The local I and O push-buttons, i.e. the OPENand CLOSE push-buttons, are made operativeby turning the key switch into the positionLOCAL, indicated by the yellow LED markedL. In this switch position all remote control sig-nals via the serial interface are inhibited.

Accordingly, to be able to control an object viathe serial communication, the key switch mustbe in the REMOTE position, indicated by theyellow LED marked R. When the key switch is

in the REMOTE position, local push-buttoncontrol is inhibited. Control signals via inputchannels 4...13 or the Direct Output Controlprogram are allowed both in the LOCAL andthe REMOTE position. The position informa-tion can also be included in the Direct OutputControl function.

The key of the key switch can be removed ineither position.

Push-buttons , I and O

A local control sequence is started by pressingthe push-button SELECT . After that theLED indicator of the object which has beendefined controllable starts flashing.

If the object is closed the indicator for the closedposition starts flashing and if the object is openthe indicator for the open position starts flash-ing. The indicator remains flashing until a con-trol command is given or a timeout of 1 minutehas elapsed.

The close and open commands are given withthe I (CLOSE) or O (OPEN) push-buttons.Depending on the status of input channels 1...3and 4..13 and the interlocking function, thecontrol module either executes the selected com-mand or switches on the INTERLOCK-LEDto indicate that the operation is inhibited.

The lenght of the the control pulse can be set inthe range 0.1...100 s.

Switchgroup SG1Switch Function

SG1/1 Switch SG1/1 is used to inhibit interlockings during testin.

When SG1/1 = 0, the interlocking function is in use.When SG1/1 = 1, the interlocking function is out of use and the red TEST LED is lit.All control operations are allowed.

NOTE! Switch SG1/1 should be used only for test purposes.

SG1/2 Switch SG1/2 is used to inhibit trip circuit and energizing current supervision.

When SG1/2 = 0 the trip circuit and energizing current supervisions are alerted.When SG1/2 = 1 the trip circuit and energizing current supervisions are out of use.

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Display of measuredvalues and serial datacommunicatorparameters

The displayed items can be stepped through bypressing the STEP push-button. The measuredvalues are presented by the three rightmost green

digits. A lit yellow LED indicator below theSTEP push-button shows which measured valueis indicated on the display.

Indicator Data to be displayed

IL1 [kA] Measured phase current IL1 in kiloamperes.The measuring range is 0.000...999 kA.

NOTE! 0.000 is indicated as .000

IL2 [kA] Measured phase current IL2 in kiloamperes.The measuring range is 0.000...999 kA.

IL3 [kA] Measured phase current IL3 in kiloamperes.The measuring range is 0.000...999 kA.

P [MW] Measured active power in megawatts. Both positive and negative val-ues are indicated. Positive values have no sign, negative values are in-dicated by a leftmost red minus sign on the display.

Q [MVar] Measured reactive power in megavars. Both positive and negative val-ues are indicated. Positive values have no sign, negative values are in-dicated by a leftmost red minus sign on the display.

E [GWh,MWh,kWh] Measured active energy. The measured value is displayed in three parts;in gigawatthours, in megawatthours and in kilowatthours.

The serial communication parameters, too, arepresented on the four-digit display. The address

of the data to be displayed is indicated by theleftmost red digit of the display.

Red digit Data to be displayed

A Serial communication address. May have a value within the range 0...254.The default value is 99.

B Serial communication baudrate. Selectable transmission rate 4.8 or 9.6 kBd.The default value is 9.6 kBd.

C Serial communication monitor. If the device is connected to a higher level datacommunication equipment and the communication system is operating, the moni-tor reading is 0, otherwise the numbers 0...255 are continuously scrolling on thedisplay.

The display can be selected to show a measuredvalue continuosly or to be switched off after a 5minutes timeout.

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Display off

Current in phase L1 / kA

Current in phase L2 / kA

Current in phase L3 / kA

Current in phase L1 / A

Current in phase L2 / A

Current in phase L3 / A

1

1

3

2

3

2

1

Active power / MW

Reactive power / Mvar

Energy / GWh

Energy / MWh

3 Energy / kWh

Serial communication monitor

Data transfer rate / kBd

Serial communication addressA

b

C

2

Reverse step 0.5 s

Forward step 1 s

Fig. 7. Display menu of the control module SPTO 1D6.

(modified 97-05)

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Alarm indicationsof supervisionfunctions

Energizing currentmonitoring

The energizing current monitoring alarm is lo-cally indicated with a flashing "C.I.F." (CurrentInput Fault) message on the display. The "C.I.F."message is acknowledged by pressing the STEPand SELECT push-buttons simultaneously.The measured phase current value can be called

up for display by means of the STEP push-but-ton, although the monitor is in the alarm state,but no other display menu items.

The energizing current monitoring function canbe disabled with switch SG1/2.

Trip circuitsupervision

The trip circuit supervision alarm is locally in-dicated with a flashing "O.C.F." (Open CircuitFault) message on the display. The "O.C.F."message is acknowledged by pressing the STEPand SELECT push-buttons simultaneously.

After acknowledge the display will reset, if the

fault has disappeared. If the fault still exists, thesteady "O.C.F." message remains on until thefault is cleared. The alarm contact output is au-tomatically reset when the fault disappears.

The trip circuit supervision function can be disa-bled with switch SG1/2.

RS 232 interface The 9-pole RS 232 interface on the front panelis used for setting the control module via a PC.The entire serial communication of the feederterminal goes over the control module SPTO1D6. This enables protection modules of thesame feeder terminal to be set via the RS 232interface of the control module.

If a PC is connected to the RS 232 interface theRS 485 interface on the rear panel of the feederterminal is disconnected. The use of the RS 232interface requires a SPA bus protocol.

The following serial communication parametersshould be used:

- Number of data bits, 7- Number of stop bits, 1- Parity, even- Baudrate, 9.6 kilobauds as a default

The table below shows the signal names and pinnumbers of the cable to be used between theRS 232 interface and the devise used for set-ting.

RS 232 interface of SPTO 1D6 Setting device

Signal name Pin number Pin number Pin number Signal name9-pin male conn. 9-pin female conn. 25-pin male conn.

Data receive, Rx 2 3 2 Datatransmit, Tx

Data transmit, Tx 3 2 3 Datareceive, Rx

Earth 5 5 7 EarthDSR 6 4 20 DTRDTR, +12V 4 - - -

Pin 4 of the RS 232 interface of the controlmodule SPTO 1D6 can be used for feeding sup-ply voltage to an optic modem. An optic mo-

dem may be necessary between the controlmodule and the programming device if the pos-sible potential difference cannot be eliminated.

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Setting

Configuration

The control module SPTO 1D6 is capable ofindicating status of 3 objects, i.e. circuit breaker,CB truck or disconnectors and controlling(opening or closing) one object.

The control module suits different circuitbreaker/disconnector/earthing switch configu-rations within the above mentioned limits. Theconfiguration can be freely selected by using theconfiguration commands explained below or bychoosing a suitable default configuration. Eachdefault configuration uses a fixed interlockingscheme.

The default configurations and correspondinginterlocking programs are explained in the ap-pendices 1...3. If the configuration or the in-terlocking program is not suitable for a certainapplication, then both must be selected by theuser.

After factory testing the default configurationand interlocking 1 has been selected for the con-trol module. Another default configuration ischosen by writing the configuration number forthe setting parameter S100 via the SPA bus.

Normally the control module is in the opera-tion mode which means that the interlockingprogram is executed. When setting a configura-tion or selecting a new default configuration thecontrol module must be in the program mode,i.e. the setting parameter S198=0.

Example 1Selection of the default configuration and in-terlocking 10 instead of default 1.

>99WS198:0:XX; Enter into setting mode

>99WS100:10:XX; Select the default 10

>99WS198:1:XX; Change into run mode

>99WV151:1:XX; Store the set parameters

If the setting parameter S100 is 0, the configu-ration is freely programmable. In this case allindicators are initially set out of use. In a freelyprogrammable configuration, only the objectsto be used must be programmed.

The three input channels 1...3 are used to readstatus data of circuit breaker and disconnectors.The input channel numbers are used when thecircuit breaker/disconnector configuration is set.

The code numbers of the indicator units on thefront panel range from 101...116 and they areused when the feeder terminal is configured. Thelocation and the code numbers of the indicatorunits in the matrix are shown in Fig. 8.

Fig. 8. Position, code number and colour of theindicator units on the front panel of the con-trol module SPTO 1D6.

The control module has two outputs, OPENand CLOSE, for the control of one object. Thecontrol outputs have their own code numbers,20 and 21, which have to be used when the con-trol module is configured. The output codenumbers correspond to the following functions:

Output code number Function

20 OPEN21 CLOSE

For the correspondence between the input andoutput codes and the terminal numbers on therear panel of the feeder terminal, see chapter"Connection diagram" in the Users manual forthe feeder terminal.

A configuration is set by linking the indicatornumber, the four-pole input number and theoutput code number by using a SPA protocolcommand.

The setting parameters S101...S116 which cor-respond to the indicator code numbers 101...116 are reserved for the configuration com-mands. Either the OPEN code (e.g.20) or theCLOSE code (e.g.21) can be used as an outputcode number. Also some other parameters, suchas object type and the location of open andclosed status indicators, are specified in the SPAinstruction.

116

109

110

115

114

113105

106

107

111

112

101

102

103

104

108

Green

Red

Column 1 2 3 4

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Example 2Indicator 109 (setting parameter S109) indicatesthe status read via input channel 2. Output 20is used to open the object and, consequently

output 21 must be used to close the same ob-ject. The object is a circuit breaker and the closedstatus is indicated by vertical red LEDs.

Instruction format:

>99 WS 109:1,1,2,20,1:XX

Type of object 0 = disconnector generally 1 = circuit breaker11 = circuit breaker truck

Output code 0 = object is not controlled20 = code of the OPEN output21 = code of the CLOSE outputNote! Either 20 or 21 can be used if the object isto be controlled.

Input channel number,Channels 1...3

Defines the vertical/horizontal position ofopen/closed indication0 = vertical LEDs indicate open status

(horizontal LEDs indicate closed status)1 = vertical LEDs indicate closed status

(horizontal LEDs indicate open status)

Specifies the use of the object indicator unit0 = not used1 = used

Code number of object indicator unit

Write Setting

Data communication addressDefault value 99

Syntax rules for configuring the control mod-ule SPTO 1D6.

1. The configuration work has to be done inthe setting mode.

2. Up to three objects can be configured (threesettings in the range of S101...S116).

3. Only the input channel numbers 1...3 areaccepted. Any number can be used only once.

4. If no object indicator is used, no other valuesneed to be given.

5. The output code numbers 20 or 21 can begiven only once. If the output code numberis 0, the definition of the object (i.e. CB/otherobject) need not to be given.

6. Only one object can be defined as a circuitbreaker and also only one object can be de-fined as a circuit breaker truck.

Normally, the control module is in the opera-tion mode, which means that the interlockingprogram is in use. The configuration of the con-trol module is made in the setting mode (set-ting parameter S198 = 0).

When parameter S100 is 0, the configurationis freely selectable. For a freely selectable con-figuration, only those objects, which are to beused, need to be set.

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Example 3To set a configuration similar to the default con-figuration 1 (indicator 109 for circuit breakertruck, indicator 110 for circuit breaker and in-dicator 116 for an earthing switch), the follow-ing commands are required:

>99WS198:0:XX; Enter into setting mode

>99WS100:0:XX; Enter into mode for free configuration

>99WS109:1,1,1,0,11:XX; Circuit breaker truck : vertical red LEDsindicate closed status for input channel 1.No control

>99WS110:1,1,2,20,1:XX; Circuit breaker : vertical red LEDs indi-cate closed status for input channel 2.Control outputs OPEN and CLOSE

>99WS116:1,0,3,0,0:XX; Earthing switch : horizontal red LEDs in-dicate closed status for input channel 3.No control

>99WV151:1:XX; Store the set parameters

After this the interlocking program has to bewritten before it is possible to open or close thecircuit breaker. See Chapter "Interlocking".

The selected configuration can be read indica-tor by indicator or all together with one singleinstruction.

Example 4Reading the configurations of indicators 101...116 by using one single instruction.

>99RS101/116:XX

This instruction will give the setting values ofeach indicator (101 to 116 ), including thosenot configured into the system. The parametervalues of the indicators not in use are zero.

912B

Fig. 9. Object configuration set in example 3.

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Interlocking The interlocking program is used to inhibit theclose or open command for a controllable ob-ject in certain situations. In practice, the inter-locking program of the control module SPTO1D6, enables the control operations, i.e. every-thing that is not enabled by the interlockingprogram is inhibited.

The default configurations have their own de-fault interlocking programs, see appendices1...3. If a default interlocking related to a de-fault configuration is not suitable, both configu-ration and interlocking must be set by the user.

The interlocking program of the control mod-ule reads the status of input channels 1...3 and4...13 and enables the opening or closing of acontrollable object when the actual open or closecommand is given vith the local push-buttons,the serial bus or the input channels 4...13.

Fig. 10. Operation principle of the control func-tions.

When parameter S198 = 0, the control moduleis in the setting mode, and when parameter S198= 1, the module is in the operation mode. Inthe operation mode the interlocking programis executed and it cannot be changed by theoperator. Only those operations enabled by theinterlocking program can be executed.

In the setting mode the interlocking program isnot executed and program changes can be done.In the setting mode the control of the objects isnot allowed, except for the case that interlock-ings are completely out of use. The interlock-ing is set or a default interlocking is selected inthe setting mode.

The interlocking program, when used, is per-manently operative both in the local and remotecontrol mode, even when the control commandsare given via input channels 4...13. The inter-locking program is executed every 20 ms. Theinterlocking program can be taken completelyout of use with parameter setting S199.

OPEN/CLOSE COMMAND

ENABLE BYINTERLOCKING

& OPEN/CLOSE OUTPUT

t

Example 5In example 3 a configuration was set. If no inter-lockings are to be used the setting continues withthe following commands:

>99WS199:0:XX; Set interlockings out of use

>99WV151:1:XX; Store the set parameters

In this case when the interlocking program isnot used, parameter S198 cannot be given thevalue 1. The status indication and object con-trol is however operating normally because theinterlockings are set out of use.

The interlockings are set via the SPA bus byusing a programming language according to theDIN 19239 standard. The structure of a pro-gram command is:

OPERATION OPERAND

LOADN 2

OPERATION is a logic command

OPERAND is the code number of an input oran output or the number of a temporary or aspecial register.

The following logic commands are used:

LOAD Reads the status of an input or aregister

LOADN Reads the inverted status of an inputor a register

AND And operationANDN And not operationOR Or operationORN Or not operationOUT Writes to an output or a registerEND End of program

For input channels 1...3 a separate operand codeis defined for each status, open, closed or unde-fined. The active status of input channels 4...13can be used as operands in the logic.

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In SPTO 1D6 the following operand values canbe used with the operations LOAD, LOADN,AND, ANDN, OR, ORN:

1...3 = input channel number; input code, if the status "closed"is used i