Epo - Emergency Power Off" Command Connection - GE SG Series Installation Manual

4.1.7

EPO - Emergency Power Off" command connection

"
Be aware:
The reliability of the system depends on this contact NC (Normally Closed)!
1
2
3
4
JP3
J2
1
2
XB
3
4
Fig. 4.1.7-1 Terminals for connection EPO
NOTE !
In case of parallel Customer Interface the EPO contact must be connected to one "P4
- 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.
XB
Modifications reserved
GE_UPS_OPM_SGS_ISG_10K_40K_0US_V070.docx
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 - Customer Interface".
When opened, this contact causes the immediate opening of the
Contactors K3, K4, K6, K7 and K8, as well as the shut-down of
Rectifier, Inverter and Static-Switch.
1
2 XB 2-3
3
4
Fig. 4.1.7-2 XB "EPO - Emergency Power Off" – RPA Parallel System connection schematics
Critical Power
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 shut-down.
1
XB
2 XB 2-3
3
4
1
XB
2 XB 2-3
3
4
EPO
Installation Guide SG Series 10-20-30-40 UL S
Page 44/46