ABB Conceptpower DPA 500, Operating Manual

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Modifications reserved
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6.11 Replacement of ups modules
6.11.1 Replacement of UPS-Module in Single-Module systems
If your CONCEPTPOWER DPA 500 consists of only one single UPS-Module, the UPS needs to be
transferred to maintenance bypass. Follow the procedure of the chapter 6.9 to transfer the UPS from
inverter operation to maintenance bypass first. Afterwards follow instructions in chapter 6.11.2 and
here below
6.11.2 Replacement of UPS-Module in Redundant Multi-Module systems
WARNING!
THE OPERATIONS DESCRIBED IN THIS CHAPTER MUST BE PERFORMED
BY A SERVICE ENGINEER FROM THE MANUFACTURER OR FROM AN
AGENT CERTIFIED BY THE MANUFACTURER.
6.11.3 To extract a UPS module follow this procedure:
1. Reset the Alarm on faulty Module (if any). The chime sound will stop. If the Alarm condition
persists (the LED Indicator ALARM will remain red) it means that there is a fault in the UPS-
Module.
2. Make sure that the system is redundant.
3. Press both ON/OFF Buttons on the UPS-Module simultaneously. This will switch the module
off.
NOTE: The rest of the system remains on-line. THE LOAD IS STILL PROTECTED BY DPA 500
4.
Open the Parallel Isolator Switch IA2 (switch to position “OFF”) of the faulty module (if any). The
UPS-Module is now disconnected from output.
5. Open battery breakers F3- of the faulty module.
6. Unscrew the four screws on the front side of the module that are fixing it to the UPS-frame.
7. Pull Module only partially out, horizontally by means of the 2 black handles until the rear
connectors are disconnected.
NOTE
THE WEIGHT OF A UPS MODULE CAN REACH 55KG, THEREFORE IT CAN
BE LIFTED ONLY BY 2 PERSONS. THE USE OF LIFTING TOOLS SUCH AS
TROLLEY WITH ADJUSTABLE HEIGHT OR SIMILAR DEVICES MAY BE
HELPFUL BY HANDLING MODULES.
WARNING!
BEFORE DRAWING THE UPS MODULE COMPLETELY OUT, WAIT 5
MINUTES UNTIL THE INTERNAL DC-CAPACITORS ARE DISCHARGED.
8. To extract the module completely out, press down the two yellow tabs top-right and top-left of
the module (as shown in the figure here below) and then draw the UPS-module out by pulling
it out horizontally.