HP R5500 manual Replacing the UPS electronics module

Replacing the UPS electronics module

This component is hot-swappable and can be replaced without powering down the UPS.

1.(optional) To replace the component with the UPS powered down, refer to "Powering down the UPS (on page 30)."

2.Disconnect the communications cable from the option card.

3.Remove the option card ("Replacing the UPS option card" on page 34).

4.Remove the UPS front bezel ("Removing the UPS front bezel" on page 32).

5.Remove the screw securing the electronics module and slide the module out.

CAUTION: To avoid dropping the load while hot-swapping the electronics module, press and hold the Test/Alarm Reset button until the electronics module is firmly seated in the connector, and the Load Bar LED is illuminated.

6.Replace the electronics module while holding down the Test/Alarm Reset button. Do not release the button until the electronics module is firmly seated in the connector, and the Load Bar LED is illuminated.

Maintenance 33