ABB VM1 Instruction Manual page 28

Figure 9/16b: Terminal diagram for circuit-breaker for fixed installation
(without plug wiring)
28 VM1 Vacuum circuit-breaker | Instruction manual 504/05
In case the closing lock-out -RL1 is
being used for an interlocking with
an external voltage, this internal con-
nection to 80 V has to be removed
27 Circuit-breaker controller
-Q0 Circuit-breaker
Inputs:
-MS Supply voltage
-MU Undervoltage release (closed circuit)
1)
-RL1 Closing lock-out (closed circuit)
-MO2 Switching command OFF 2 (open circuit)
-MO1 Switching command OFF 1 (open circuit
-MC Switching command ON (open circuit)
Outputs:
-BB4 Fleeting contact (100 ms)
-DN NOT READY (NCC)
-DR READY (NOC)
-DC2 ON signal 2 (NOC)
1)
-DO2 OFF signal 2 (NOC)
1)
-DC1 ON signal 1 (NOC)
-DO1 OFF signal 1 (NOC)
Full version
1)
See page 52 for comparison of IEC/VDE designations.