Modifications reserved
THE LOAD IS NOW DIRECTLY SUPPLIED BY MAINS AND IS NOT
PROTECTED
4. Press both ON/OFF buttons on UPS-module simultaneously.
5. Open battery fuses/breakers on the internal (if any) and the external battery cabinet or rack;
6. Unscrew the two screws on the front side of the module that are fixing it to the UPS frame;
7. Pull module only partly horizontally by means of the 2 black handles until the rear connectors
are disconnected.
THE LOAD IS NOW DIRECTLY SUPPLIED BY MAINS AND IS NOT
PROTECTED.
BEFORE DRAWING THE UPS-MODULE COMPLETELY OUT, WAIT 2
MINUTES UNTIL THE INTERNAL DC-CAPACITORS ARE DISCHARGED.
8. Pull the UPS module out fully:
ABB recommends two persons pull the module out from the UPS frame; the weight
of a of UPScale M10 is 18.5 kg, M20 module is 21.5 kg)
Insert new UPS-module or cover the opening (UPS-module compartment) with appropriate
protection cover immediately and fix with two screws
WHILE THE UPS IS OPERATING IN THE MAINTENANCE BYPASS-MODE
THE LOAD IS NOT PROTECTED AND IN THE EVENT OF A MAINS FAILURE
THE LOAD SUPPLY WILL BE INTERRUPTED AND THE LOAD WILL CRASH.
7.4.1.2 How to fit back a ups-module in single-module-systems
If your DPA UPScale
TM
consists of only one single UPS-module then perform following steps to fit
back the new module:
1. Remove UPS-Module compartment protection cover by unscrewing two screws on the front.
2. Slide two thirds of UPS module into the dedicated UPS compartment (make sure not to plug
the UPS module into the rear connector).
Push the UPS module into its final position and push firmly to assure good contact with the
rear plugs.
We recommend two persons for reinstalling the module into the UPS frame; the
weight of a of UPScale M10 is 18.5 kg, M20 module is 21.5 kg)
3. Tighten the two screws on the front of module.
4. Check if the LED LINE1 and battery are green. If yes, mains voltage is operational.
5. Close internal and external battery fuses/breaker (if available);
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