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OPM_LPS_3UO_30K_40K_0US_V010.doc Operating Manual LP 33 Series 30 & 40 kVA
7.2.3 Start-up following the operation on maintenance bypass (Q2)
This procedure presupposes that the load is powered by the manual bypass switch:
• The inverter is switched OFF;
• The manual bypass switch Q2 is switched ON (Pos. I);
•
The output switch Q1 is switched OFF (Pos. 0);
• The battery fuses F5, F6, F7 (and eventual external fuses in case of external battery) are removed.
1. Insert the rectifier input fuses F1, F2, F3 and the battery fuses F9, F10, F11 / F13, F14, F15 (and
eventual external battery fuses) on each unit.
2. Switch ON the output switch Q1 (Pos. I) on each unit.
3. Only in case it has been previously activated (* present beside
the text RESET TOTAL OFF), restore the command total off
on
any one of the units
by entering the screen:
MENU/RESET TOTAL OFF
LED TEST
RESET TOTAL OFF *
Udcp=215V Udcn=215V
Ubp=164V Ubn=164V F
Charge level = 100%
Autonomy = 800min
4. Open the maintenance bypass switch Q2 (Pos. 0) on each
unit.
Verify, selecting the screen METERING/Udcp and Udcn, that the
booster voltage has reached about 215 VDC on each unit.
5. Switch ON the inverter on each unit entering the screen:
MENU/ COMMAND MENU /INVERTER ON
(Do not start the next inverter until the sequence of the
previous one ends – about 10 seconds).
COMMAND MENU
INVERTER ON *
INVERTER OFF
LP 33 40kVA P1
APPLICATION ON UPS
= 70%
The load will be automatically transferred from mains to the
inverters as the needed power requested from the applied load
is achieved on inverter side.
The main screen of each unit will display:
APPLICATION ON UPS
END OF PROCEDURE