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OPM_LPS_3UI_10K_20K_0US_V010.doc
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Installation Guide
LP 33
/ 10 - 20 kVA
4.3
EPO (EMERGENCY POWER OFF)
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
P2
– Mainboard.
NOTE !
To enable this function, remove jumper
JP8
on
the
P2 - Mainboard
, when the cables have
been already connected on
X7 / 1, 2
.
LPS33U_01
0-020_UPS
EPO_01
OFF
Q1
Q2
ON
OFF
ON
F1 F2
F3
F13 F14
F15
F9 F10
F11
1
2
X7
P2 - Mainboard
J28
JP8
Fig. 4.3-1 Terminals X7 - EPO
In a parallel system a separate NC
(Normally
Closed)
contact must be connected
individually to each unit
.
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 following
:
•
Press the push-button
EPO
(contact on
X7 / 1, 2
is closed again).
•
Perform the command
INVERTER OFF
entering the screen:
MENU/COMMAND MENU/
INVERTER OFF
.
COMMAND MENU
INVERTER ON
INVERTER OFF
٭
•
Start the inverter entering the screen:
MENU/COMMAND MENU/
INVERTER ON
.
COMMAND MENU
INVERTER ON
٭
INVERTER OFF