Critical Power
Modifications reserved
Page 41/43
GE_UPS_ISG_LPS_3UL_20K_30K_2US_V010.docx
Installation Guide
LP33 Series 20 & 30 UL S2
EPO (Emergency Power Off)
An external Emergency switch (
NC - Normally Closed
voltage-free contact) can be connected on
terminals
X2 / 1, 2
or connector
J2 / 12, 25
of the
Customer Interface
(see
Fig. 5.4-1 / X2 & J2
).
Fig. 5.4-2 PCB Customer Interface
Fig. 5.4-3 PCB P1 – Control board
NOTE !
To enable this function, remove jumper
JP3
on the
Customer Interface
and the
cable on the terminal
X2 / 1, 2
(see
Fig. 5.4-2).
Verify if the cable on the terminal
X7 / 1, 2
and jumper
JP5
on the
P1 – Control
board
are OFF
(see
Fig. 5.4-3).
In a Parallel System a separate NC
(Normally Closed)
contact must be connected
individually to each unit
.
When activated, this switch causes the immediate shut-down of
booster
,
battery-charger
,
inverter
; and
the
contactors K4, K6
and
K7
.
NOTE !
This procedure could imply a load shut-down.
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 6.2 of User Manual)
on the
control panel
.
Press the key
“
I
”
(
Inverter ON
– see
Section 6.2 User 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.
SG
T
4
00
0
_c
u
s
to
m
er
inte
rf
ac
e_
01
1
2
3
4
5
6
7
8
9
10
11
16
15
14
13
12
22
21
20
19
18
17
J3
J2
X1
2
1
JP3
X2
1
2
P1 - Control board
JP5
X7
LPS33U_0
20-030_S2
_UPS-X7-J
P5_01
