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4.1.6 EPO (Emergency Power Off) Input contact
BE AWARE !
The reliability of the system depends on this contact NC (Normally Closed)!
Q1
1
2
3
4
1
2
3
4
1
XA
2
3
4
1
2
XB
3
4
Terminals XB
1
2
3
4
Fig. 4.1.6-1 Terminals XB for connection EPO
NOTE !
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:
•
Realize the push-button EPO (contact on XB / 1, 4 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_M75_M75_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.
NOTE !
To enable this function,
remove
circuiting XB / 2 - 3 on the
Terminal
Jumper
JP3
Customer Interface, when
the
cables
already connected on XB
or J2.
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 shutdown of the
Rectifier and the Inverter and the Static-
Switch.
This procedure could imply a Load shutdown.
cable
short-
XB
and
the
on
P4
–
have
been
Fig. 4.1.6-2 Customer interface
Installation Guide SG Series 750 UL S2 & SG Series 750 T12 UL S2
XB
JP3
J2
Page 48/49
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