Epo (Emergency Power Off) Input Contact - GE SG300 Installation Manual

4.1.7 EPO (Emergency Power Off) Input contact

Be aware:
The reliability of the system depends on this contact NC (Normally Closed)!
1
2
3
4
JP3
Fig. 4.1.7-1 Terminals for connection EPO
NOTE !
In case of parallel Customer Interface the EPO contact must be connected to one
Customer Interface only, but the bridge on X2 and jumper JP3 on the P4 – Customer
Interface must be removed on all other boards.
In a parallel system a separate NC (Normally Closed) contact must be connected
individually to each unit.
When the EPO has been activated, the system must be restored as follows:
•
Press the push-button EPO (contact on X7 / 1, 2 is closed again).
•
Press the key "O" (inverter off – see Section 5.2 – Operating Manual) 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 the parallel bus and having its output switch Q1 closed.
Modifications reserved
OPM_SGS_ISG_M22_M30_2US_V010.doc
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.
1
2
3
J2
4
XB
When opened, this contact causes the immediate opening of the
Contactors K4, K6 and K7, as well as the shutdown of Rectifier,
Inverter and Static-Switch.
NOTE !
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.
NOTE !
This procedure could imply a load shutdown.
Page 39/40
Installation Guide SG Series 225 & 300 UL S2