Epo (Emergency Power Off) Input Contact - GE Digital Energy SG Series Installation Manual

Uninterruptible power supply 10, 20, 30 and 40 kva

Hide thumbs Also See for Digital Energy SG Series:

Table of Contents

4.1.7 EPO (Emergency Power Off) Input contact

Fig. 4.1.7-1 Terminals for connection EPO

To enable this function, remove cable short-circuiting XB / 2 - 3 on the

Terminal XB and the Jumper JP3 on P4 – Customer Interface, when the

cables have been already connected on XB or J2.

In a parallel system a separate NC (Normally Closed) contact must be

connected individually to each unit.

When opened, this contact causes the immediate opening of the Contactors K3, K4, K6, K7

and K8, as well as the shutdown of Rectifier, Inverter and Static-Switch.

After closure of the Emergency contact, a reset is necessary to enable the restart of

the UPS, by pressing the key "O" (inverter off) on the control panel.

In case of a parallel system press the key "O" (inverter off) on the

control panel of each unit connected on parallel bus and having it's

output switch Q1 closed.

OPM_SGS_ISG_10K_40K_0US_V010.doc

JP3

Be aware: The reliability of the system depends on this contact!

44/45

An external Emergency switch (Normally Closed

voltage-free contact) can be connected on

terminals XB / 1 - 4 or connector J2 / 12 - 25 of

the P4 - Interface Customer.

Remove the cable short-circuiting terminals

XB 2 - 3) when using this external switch.

Installation Guide SG Series 10, 20, 30 & 40 kVA

Table of Contents