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
