GE Industrial Solutions LP 33U Series 10 & 20 kVA Installation Guide - Manual (Page 36)

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OPM_LPS_3UI_10K_20K_1US_V010.doc Installation Guide LP 33U Series 10 & 20 kVA / S1
4.3 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 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_
010-020_ 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 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 Operating Manual) on the control panel.
• Press the key “I” (Inverter ON – see Section 6.2 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.