PowerWAVE 9000 DPA UPS - UPS Module Replacement
5-7
(Issue 2.1 Oct. 2009)
5.3 Replacement of a Module In Capacity Multi-Module System
ALL THE OPERATIONS IN THIS SECTION MUST BE PERFORMED BY
AUTHORISED ELECTRICIANS OR BY QUALIFIED INTERNAL
TRAINED PERSONNEL.
BY OPENING OR REMOVING THE UPS MODULES AND MODULE
COVERS YOU RUN RISK OF EXPOSURE TO DANGEROUS
VOLTAGES!
BEFORE REMOVING A UPS MODULE MAKE SURE THE INTERNAL
DC CAPACITORS HAVE BEEN DISCHARGED FOR AT LEAST 2
MINUTES.
NEVER LEAVE THE UPS MODULE COMPARTMENT WITHOUT AN
APPROPRIATE PROTECTION COVER
UNINTERRUPTIBLE POWER SUPPLIES LTD. WILL NOT TAKE
RESPONSIBILITY OR BE LIABLE FOR PERSONNEL INJURIES OR
MATERIAL DAMAGES CAUSED BY IMPROPER MANIPULATION OF
THE UPS, OR BY INCORRECT CABLING. THE PROPER
INSTALLATION AND USAGE INSTRUCTIONS OF THE UPS ARE
DESCRIBED WITHIN THIS MANUAL AND MUST BE STRICTLY
ADHERED TO.
5.3.1 Removing a Module From a Capacity Multi-Module
System
If, in a capacity parallel system, a UPS Module fails and there is not enough
capacity left to protect the load by the remaining operating UPS modules,
the load will automatically be transferred to bypass (Bypass Mode or Eco-
Mode) and will continue to be supplied by the mains supply.
To extract the faulty module from the UPS Frame in a Capacity Multi-
Module System proceed as follows:
1.
Identify the faulty Module with the Alarm condition and RESET the
Alarm. The audible noise will stop. If the Alarm conditions persists
(the LED Indicator ALARM is red) there is a fault in the UPS
Module.
2.
Verify that the load is on Bypass and is supplied by the mains power
(Bypass Mode or Eco-Mode) on all three UPS modules; in the
majority of the events the LED indicators on Control Panel of the
Faulty Module will show:
LED Indicator
Colour
LINE 1
Green
LINE 2
Green
BYPASS
Green
INVERTER
RED
BATTERY
Green