Parallel Ups Shutdown With Load Transfer On Manual Bypass (Q2) - GE LP 33 Series Operating Manual

8.2.2

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.

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.

The output will be supplied by the mains through all automatic

bypass.

2.

Switch ON the maintenance bypass Q2 (I) on each unit.

3.

Switch OFF the output switch Q1 (0) on each unit.

4.

Perform the command total off on each unit.

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) on each unit.

Modifications reserved

OPM_LPS_33E_10K_30K_4GB_V030.doc

COMMAND MENU

INVERTER ON

INVERTER OFF

LP 33

20kVA P1

APPLICAT. ON UTILITY

= 70%

LP 33

20kVA P1

APPL. ON MANUAL DEV.

= 70%

Continue

Operating Manual LP 33 Series / 10-20-30 kVA

*

►

Page 65/85