31
Appendix 1
Default configuration
and interlocking 1
Default configuration and interlocking 1 is se-
lected by giving variable S100 the value 1. The
other parameters have the values given in the
chapter "Default values of the parameters"
Configuration
The configuration has three objects, a circuit
breaker, a circuit breaker truck and an earth-
switch. The close state is indicated with red
colour and the open state with green colour. The
following inputs, indicators and outputs are
used:
- Circuit breaker;
input channel 2, indicator 110, controlled
by OPEN (20) and CLOSE (21) output
- Circuit breaker truck;
input channel 1, indicator 109, not
controlled
- Earth-switch;
input channel 3, indicator 116, not
controlled
The configuration commands are:
S109:1,1,1,0,0
S110:1,1,2,20,1
S116:1,0,3,0,0
912B
Fig. 14. Default configuration 1.
Interlocking
The following rules apply for interlocking:
- The CB can always be opened.
- The CB can be closed if the CB truck is in the
isolated position or if the CB truck is in the
service position and the earth-switch is open.
Fig. 15. Logic diagram for the default inter-
locking 1.
The interlocking program has the following
formula:
M200:LOAD 61
M201:OUT 20
M202:LOAD 1
M203:AND 203
M204:OR 201
M205:OUT 21
M206:END
1
1
&
61
20
21
203
1
; ENABLE TO OPEN CB
; ENABLE TO CLOSE CB
201
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