Emergency Power Off - Epo (Manual); Epo Indication; Battery Trip Coil - Gamatronic Centric 50 kVA User Manual

1.6 Emergency Power Off – EPO (manual)
An external Emergency Power Off (EPO) switch may be installed on the Centric by the customer.
The EPO switch cuts power to the load in emergency situations. After being switched OFF by the
EPO, the Centric must be restarted manually. Refer to the section "Emergency Power Off" in the
Centric Installation Guide for further information.
1.6.1

EPO indication

Any of the output dry contacts can be assigned to indicate when the EPO switch has been
activated. This dry contact can be used to trigger an external circuit if desired, such as a lamp or
an audible alarm.
Refer to the section "EPO indication" in the Centric Installation Guide for further information.
1.6.2

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 Centric sends a voltage pulse 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.Refer to the section "Battery trip coil" in the
Centric Installation Guide for further information.
CENTRIC User Guide, Release 0.3
Gamatronic Electronic Industries Ltd.
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