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Centric 3x480 Vac, Installation Guide, rel. 2.2
49
Figure 44: Status > Modules > Inverter status for module 4
6.
Unscrew the two screws that secure the module in place – one screw on the left side, one on the right
side of the module’s front panel.
7.
Pull the module out a bit – about 10 cm (3 inches) – enough to disconnect its rear connectors from the
UPS. (Don’t put the module out too much or you’ll break the flat cable!)
8.
Disconnect the flat cable (ribbon cable) from each side of UPS module’s front panel.
9.
Now remove the UPS module entirely. Two persons are required to remove the module. Let one
person stand on the left side of the module, the other on the right side of the module. Slowly pull the
module out of the shelf.
Be prepared for the fact that when the module is completely pulled out
its weight (about 20 kg) will be fully in the hands of the two workers.
(Before you take the
module out of the shelf, have a place where to lay it down after it is removed.)
10. Slide the replacement module most of the way in but NOT ALL THE WAY IN. (Don’t seat the
module’s rear connectors.
11. There is a flat cable (ribbon cable) on the front right and left of the shelf. Connect these two flat cables
to the UPS module.
12. Now push the replacement module all the way into the module shelf. Push the module inward gently
but firmly to ensure proper seating of the module’s rear connectors. Fasten the module to the UPS
frame with two screws type M5 conical, one on the left and one on the right of the module face.
13. Navigate to "Setup > System > Nominal Settings" and tap the Confirm button.
14. Navigate to "Operation > Turn on/off > Modules on". Select the module to be switched "ON" and press
"Confirm". (You may be prompted for the system password.)
A message is displayed on the screen: “This will disconnect ac input for all modules. Warning! If
batteries cannot support the load UPS will transfer to bypass. Continue?”
If the batteries have a good charge, you can ignore this message and tap “Continue”. If you think your
batteries might not be able to support the load at this time, you might want to temporarily reduce the
load, or press “Cancel” and let your batteries charge before continuing. As a rule of thumb, figure that
the battery needs to have a charge sufficient to support the load for 10 minutes.
Wait until all the modules that should be “ON” are marked with a checkmark. (Figure 47).
