MaxPower Corp Gamatronic Power+ M50 - Manuel (Page 52)

Gamatronic Electronic Industries Ltd.
36 POWER+ 3x208 V, User Guide, Release 2.3
5.4.4 Battery Trip Coil
The battery trip coil terminals are intended to be connected to the trip coil of the battery circuit
breaker (Figure 33 and Figure 34). If this is done and the EPO switch is activated, the P
OWER +
SA 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.
5.4.5 Emergency Power-off
An external Emergency Power-Off (EPO) switch can be installed to enable immediate
shutdown of the UPS (Figure 33 and Figure 34). The UPS has two terminals marked "EPO" for
connection of an EPO switch.
Use of a large mushroom-type N.O. (normally open) pushbutton rated for 1 A / 24 Vdc is
recommended. Verify continuity of the switch at its connection points before installing.
To restart the UPS following use of the EPO, turn off all input circuit breakers (rectifier ac input,
bypass ac input, battery) and then start the Power+ as normal (see section
6 on page 53).