MaxPower Corp Gamatronic Power+ RM100 - Manual (Page 53)

Gamatronic Electronic Industries Ltd.
POWER+ RM100, 3 X 208 V, User Guide, Release 2.7ys 37
5.6 Special terminal connections
This section describes the special-purpose terminal connections of the POWER+.
The special-purpose terminal connections on the 100 kVA model are on the rear side of the UPS
near the power terminals and can be seen in Figure 19 on page 23. Figure 32 shows the
connections to external devices.
EXTERNAL BATTERY BOX
CB CB aux. contacts
provide "on/off"
indication
Pulse to
batt. trip coil
turns CB off
Auxiliary contacts of Battery
C.B.s are connected to
UPS Controller inputs
"Bat CB" and "Com" as
marked.
External N.O.
EPO switch
N.O. contacts:
closed for bypass
operation
Terminal block
located on rear of
UPS
Figure 32: Special purpose terminal connections
There are also some special purpose connections on the rear of the controller module.
5.6.1 Load on bypass alarm
This output dry contact is Normally Open, and closes when the UPS transfers the load to bypass.
The dry contact reopens again when the UPS returns to inverter mode.
5.6.2 Battery trip coil
The battery trip coil terminals are intended to be connected to the trip coil of the battery circuit
breaker. If this is done and the EPO switch is activated, the P
OWER + sends a pulse of 120 V to
the battery circuit breaker trip coil, causing the battery circuit breaker to turn OFF.
Use of the battery trip coil means that not only will use of the EPO switch cut all ac output from
the UPS, it will also turn off the battery circuit breaker.