OPM_LPS_33E_10K_30K_4CN_V010.doc 58/82 Operating Manual LP 33 / 10-20-30 kVA
8.1.2 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 authorised Service Centre.
NOTE !
This procedure must not be performed if the UPS is used as frequency
converter.
INVERTER ON
> INVERTER OFF ٭
1. Switch OFF the inverter by entering the screen:
MENU/COMMAND MENU/INVERTER OFF
Attention: to switch OFF permanently the inverter the key
Enter must be pressed 2 times.
The output will be supplied by the mains through the
automatic bypass.
LP 33 20kVA
APPLICAT. ON UTILITY
2. Switch ON the maintenance bypass Q2 (Pos. I).
LP 33 20kVA
APPL. ON MANUAL DEV.
3. Switch OFF the output switch Q1 (Pos. 0).
4. Perform the command total off.
5. Remove the rectifier-input fuses F1, F2, F3 and the battery fuses F9, F10, F11 (remove
the external battery fuses in case of external battery).
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