Modifications reserved Page 45/57
OPM_LPS_3UO_50K_60K_0US_V010.doc Operating Manual LP 33 Series 50 & 60 kVA
7.2.2 Parallel UPS shutdown with load transfer on manual bypass (Q2)
The purpose of this procedure is to supply the load directly by mains through manual bypass Q2.
This procedure is normally performed when the UPS must be completely switched OFF for maintenance
or service purpose, performed by an authorized Service Center.
1. Switch OFF the inverter on each unit entering the screen:
MENU/COMMAND MENU/INVERTER OFF
Attention: to switch OFF permanently the inverter the key
Enter must be pressed 2 times.
COMMAND MENU
INVERTER ON
INVERTER OFF *
The output will be supplied by the mains through all automatic
bypass.
LP 33 60kVA P1
APPLICAT. ON UTILITY
= xx%
2. Switch ON the maintenance bypass Q2 (I) on each unit.
LP 33 60kVA P1
APPL. ON MANUAL DEV.
= xx%
3. Switch OFF the output switch Q1 (0) on each unit.
4. Perform the command total off on each unit.
5. Switch OFF battery breaker on each battery cabinet.
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