GE Industrial Solutions SG Series 400 & 500 Installation Guide - Manual (Page 40)

4.1.8 EPO (Emergency Power Off) Input contact
BE AWARE:
The reliability of the system depends on this contact NC (Normally Closed)!
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.
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.
SG
S_
4 00
-5
0 0_
U
PS_
XA-
XB
_0
1
1
XA
2 3 4
4 2 3 1
XB
When opened, this contact causes the immediate opening of the
Bypass Contactors K6 and K7, Rectifier input contactor, K4,
External Battery Breaker (if present) as well as the shut-down of
the Rectifier and the Inverter and the Static-Switch.
Terminals XB
SGS_40
0-500_Te
rminals X
B_01
4
2
3
1
Fig. 4.1.8-1 Terminals XB for connection EPO
SGS_400-500_C
ustomer interfac
e EPO_01
JP3
J2
Fig. 4.1.8-2 Customer interface
NOTE ! This procedure could imply a Load shut-down.
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 Page 40/41
OPM_SGS_ISG_M40_M50_2US_V021.doc User Manual SG Series 400 & 500 UL S2