Modifications reserved
Page 95/103
OPM_LPS_33E_60K_M12_2GB_V010.doc
Operating Manual
LP 33 Series 60-80-100-120 kVA / S2
9.3 EPO (EMERGENCY POWER OFF)
WARNING !
Connections described in this chapter shall be done only by a trained person or
SERVICE ENGINEERS
.
An external Emergency switch (
NC
- Normally
Closed voltage-free contact) can be connected
on terminals
X7 / 1, 2
of the
P1 – Mainboard
.
NOTE !
Check that the
Jumper JP5
is
not installed on the
P1 -
Control board
.
In a Parallel System a separate
NC
(Normally Closed)
contact
must be connected individually
to each unit.
LPS33_060-080_
X7+JP5
_01
OFF
O N
OFF
ON
1
2
X7
P1 - Control board
JP5
Fig. 9.3-1 LP 33 Series 60 - 80 kVA -
Terminals
X7 – EPO
Q2
O N
O FF
Q2
ON
OFF
1
2
X7
P1 - Control board
JP5
LPS33_100-120_
X7+JP
5_01
Fig. 9.3-2 LP 33 Series 100 - 120 kVA - Terminals X7 - EPO
When activated, this switch causes the immediate shutdown of
booster
,
battery-charger
,
inverter
; and
the
contactors K4, K6
and
K7
.
NOTE !
This procedure could imply a load shutdown.
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
) on the
control panel
.
•
Press the key
“
I
”
(Inverter ON
– see
Section 6.2
) 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.