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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 subsection 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
6.11.2.1 To extract a UPS module follow this procedure:
1.
Reset the Alarm on faulty Module. 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.
If the load is supplied by the mains in Bypass-Mode (Eco-Mode) the Maintenance Bypass (IA1) may be
closed by turning it to position "ON".
NOTE: If the load is on inverter then before closing the Maintenance Bypass IA1, transfer load to bypass by
means of the command "LOAD TO BYPASS" in submenu COMMANDS. On LCD: "LOAD NOT
PROTECTED" will appear.
3.
Make sure that the system is redundant.
4.
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
5.
Open the Parallel Isolator Switch IA2 (switch to position "OFF") The UPS-Module is now disconnected from
output.
6.
Open battery fuses/breakers of the external battery cabinet or rack
7.
Unscrew the four screws on the front side of the module that are fixing it to the UPS-frame
8.
Pull Module only partially out, horizontally by means of the 2 black handles until the rear connectors are
disconnected.
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.
BEFORE DRAWING THE UPS MODULE COMPLETELY OUT, WAIT 5 MINUTES UNTIL THE
INTERNAL DC-CAPACITORS ARE DISCHARGED.
9.
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.
THE OPERATIONS DESCRIBED IN THIS CHAPTER MUST BE
PERFORMED BY A SERVICE ENGINEER FROM THE MANUFACTURER OR
FROM AN AGENT CERTIFIED BY THE MANUFACTURER.
!
04-3275_OPM_ABB_CONCEPTPOWER_DPA_500kW_EN_REV-A.docx
Modifications reserved
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