Replacing an ES5000/8000 Power Supply

The ES5000 and ES8000 have two hot-swap redundant power supplies. If either power supply fails, the redundant feature allows the other module to take over the full load, and the system runs without interruption.

The power supplies can be replaced without powering the system down or sliding the ES5000/8000 out from the rack. In normal operation, the "Power Indicator" LED on the front panel is green, and the "Power Supply Status" LEDs on the back of the ES5000/8000 are also green for each power supply.





Failure Identification

Case 1

If either of the two power supplies completely fails, the "Power Indicator" LED on the front panel turns yellow, and an alarm sounds until the power supply is replaced.

On the back of the unit, the "Power Supply Status" LED for the unit that has failed is either off or yellow. This is the power supply to replace.

Case 2

If either of the two power supplies partially fails, the "Power Indicator" LED on the front panel is green and no alarm sounds.

On the back of the unit, the "Power Supply Status" LED for the unit that has partially failed is yellow. This is the power supply to replace.

CAUTION
  • Be sure that the appliance is properly grounded to the chassis ground through the AC power cord or enclosure frame.
  • Touch a grounded metal object before removing the power supply module from the antistatic bag.
  • Make sure to replace with the same type of power supply.

Single Power Supply Replacement

To replace a failed power supply:

  1. Ensure that the power cord is unplugged from the failed power supply module. Then, while holding onto the handle, press the green locking tab on the bottom right of the power supply in toward the handle. This will disengage the power supply.


  2. Pull the power supply module straight out. Check to make sure that the replacement power supply module is the same type as the one previously removed.


  3. Carefully push the power supply module straight into the appliance until you hear the release tab click into place.

  4. Plug the AC power cord back into the new power supply module. The "Power Supply Status" LED on the new module should now be green.