Installation Guide Manual

4.1.7 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.
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.
4
1
3
2
3
2
1
SGT5000_100-150_Customer interface EPO_01
4
JP3
XB
J2
Fig. 4.1.7-1 Terminals for connection EPO
NOTE !
This procedure could imply a load shutdown.
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 37/38
OPM_SGS_ISG_50K_80K_0US_V040.doc Installation Guide SG Series 50 & 80 kVA