GE Industrial Solutions CPS6000 - Manual (Page 154)

CPS6000 –48V Indoor/Outdoor Power Shelf
Issue 21 January 2008
154
Figure 12-2: Typical Alarm Connections
The DIST_ALM(1, 2) EXT BAT SW(1, 2), and the EXT AUX MAJ(1, 2) alarm inputs are to
be connected as shown in Figure 12-2. All of these inputs alarm on a closure to VBus(-).
The DIST_ALM(1, 2) alarm inputs are to be used for monitoring US Style CBs and GMT
style fuses.
The EXT BAT SW(1, 2), alarm inputs are to be used for monitoring battery disconnect
switches or circuit breakers with a micro switch that closes on manual opening of switch.
The EXT AUX MAJ(1, 2) alarms may be connected to external devices with a micro switch
that closes on an alarmed state. Examples of this might be a Door Open alarm, or a Fan Fail
alarm.
Since these devices all alarm on a contact closure, the protectors of the same type may have
the indicating NC terminal connected together and the C terminals connected together and
connected as shown above. This is not the case for DIN style circuit breakers, which must be
individually monitored via different alarm inputs as shown in Figure 12-5.