ABB ACS880-207, Hardware Manual

Page: 19 / 148

Control unit (BCU) A51 5
24 V DC power supply for cabinet lighting (G301) T130 6
Reserved space for customer-defined equipment 7
At the backside of the assembly plate: Auxiliary voltage transformer (G344).
Note: Connections are accessible from front. (Terminal block is at the lower part
of cubicle.)
T21
At the backside of the assembly plate: Auxiliary voltage transformer, IP54 roof fans
(B055).
Note: Connections are accessible from front. (Terminal block is at
the lower part of cubicle.)
T101
Main safety relay (optional) A61 8
Safety relay (optional) A62
Safety relay (optional) A63
Safety relay (optional) A611 9
A612
A613
A614
A621
A622
A623
A624
Relays (optional) K61…K66 10
Terminal block, emergency stop circuit (optional) X60 11
Power supply, safety circuit (optional) T61 12
Power supply, safety circuit (optional) T62
Protection switch, safety circuit (optional) F61
Terminal blocks, auxiliary voltage transformers T21 and T101 connections T21X1, 13
T101X1
Auxiliary voltage transformer. Supplies direct-on-line cooling fans (C188). T111 14
Auxiliary circuit terminal block (on side plate) X22 15
24 V DC power supply (on side plate) T22, X21 16
Circuit breakers, auxiliary voltage circuits (on side plate) F20, F22 17
Connections and switches for external auxiliary voltage supplies (UPS), (option
+G307, on side plate) Q20 18
Q95
Q130
Terminal blocks, emergency stop circuits (option, on side plate) X60, X61 19
Operation principle and hardware description 19