OPM_LPS_33E_10K_30K_4CN_V010.doc 73/82 Operating Manual LP 33 / 10-20-30 kVA
9.3 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.
SGT4000_010-020_UPS+IM0059-X7_01
J28
X7
P2 - Mainboard
JP8
12
Fig. 9.3-1 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.
INVERTER ON
> INVERTER OFF ٭
• Start the inverter entering the screen:
MENU/COMMAND MENU/INVERTER ON.
> INVERTER ON ٭
INVERTER OFF