GE Industrial Solutions BDCBB H569-445 - Manual (Page 27)

Secondary DC Power Distribution Bay H569-445
Issue 3 June 2012 27
Alarm Connections and ABS Power
At the top of the cabinet is a Customer Interface Board for connecting Output Alarms
and Alarm Battery Supply (ABS) to redundantly power the alarms and the VIM1C meter.
The VIM1C receives redundant power from panels 1 and 2 as well as an external ABS
connection, so the ABS connection is not mandatory for proper operation but some
customers require its use. A Return connection is required for operation of the meter
and alarms. The Return connection on the Customer Interface Board is factory wired
when internal return buses are ordered, otherwise it must be field wired to the external
return bus. Alarm Outputs consist of one form-C contact for power loss, one form-C for
current overload and one form-C contact for fuse/breaker alarms (Note: there are two
connection points for FAJ/CB but they are connected to the same form-C contact).
Contacts are rated for 60V, 1/2A. Maximum wire size to the terminal blocks is 12 gage.
Figure 17 Accessing Customer Interface Board