Individual Module Start/Stop Procedure - Kohler PW 9000DPA User Manual

4: Operation

4.5.4 Individual module start/stop procedure

If a multi-module system is designed with built-in redundancy, it is possible to stop and start one module
without affecting the operational status of the overall system – e.g. one module can be taken off-line for
servicing whilst the remaining modules maintain a protected load supply.
Module start-up:
Use this procedure to start a module and connect it to a multi-module system.
This procedure assumes the following initial conditions:
• UPS input isolators are open on the building's LV supply switchboard
• The fused battery isolators are open in the battery cabinet
• In the UPS cabinet, the fused isolators F1, F2 and the parallel isolator (IA2) are open
1. In the UPS cabinet, close the Input supply and Bypass supply fused isolators F1, F2 and the Parallel
Isolator IA2.
2. Close the UPS input supply isolator at the LV switchboard.
a) The LINE 1 indicator will illuminate green.
b) The LCD display will indicate LOAD OFF SUPPLY FAILURE. If necessary press the RESET button to
3. Identify the associated battery cabinet/rack for the UPS module and close the fused battery isolators.
Simultaneously press the two ON/OFF push buttons on the UPS control panel.
4.
a) The UPS will run through an automated start-up sequence accompanied by the following indications:
b) LCD displays the LOAD PROTECTED message.
5. The UPS module is now On Line and connected to the parallel system.
4-14
WARNING: All the operations in this section must be performed by authorised and trained
personnel.
obtain this display.
LINE 2 LED lights red then changes to green.
INVERTER LED lights green.
BATTERY LED lights green (constant).
LINE 2 BY PASS
LINE 1 INVERTER
BATTERY
LED
LOAD
LINE 1 Green
LINE 2 Green
BY PASS Off
INVERTER Off
BATTERY Green
UPS306-01-00 PowerWAVE 9000 DPA User Manual Dated 01-06-2010
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