Replace Ac Power Supplies With Dc Power Supplies - HPE Nimble Storage HF Series Hardware Manual

1 In LED
2. Remove the power connections.
CAUTION: Before proceeding, verify that the DC power source is turned off at the circuit breaker.
a) Push the power supply release lever to the left, grasp the handle, and pull the power supply out several inches to access
the connector cover.
1 Power supply release lever
b) Remove the connector cover from the PSU.
c) Unscrew the two wire connections labeled + (RTN) and - (-48V) from the PSU and pull the wires out.
d) Remove the PSU.
3. Insert the new PSU. Push in gently until you hear a click.
Do not force the power supply. If it fails to install properly, contact HPE Support.
4. Attach the power connections to the PSU.
a) Push the power supply release lever to the left, grasp the handle, and pull the power supply out several inches to access
the connector cover.
b) Remove the connector cover from the PSU.
c) Using the screws provided in the PSU replacement kit, screw in the two wires from your DC power source to the
connections labeled + (RTN) and - (-48V).
d) Return the connector cover to its position and tighten the cover screw. Maximum torque is 4.3 in-lbs (0.49 N-m).
e) Return the power supply to its position.
Power is automatically restored to the PSU when the connection is made and the DC power source is turned on.
5. After no more than two minutes, verify that the LED on the PSU is lit and appears solid green.
If the LED does not stop blinking and go solid green, check the connection to the power source. If that does not work,
contact HPE Support.
6. Return the failed PSU as directed on the RMA work order.

Replace AC Power Supplies with DC Power Supplies

Use this procedure to replace the AC power supply units (PSUs) on your HPE storage array with DC PSUs.
One PSU can adequately power the array while the other PSU is being replaced.
Warning: You can only replace the AC Power supply with a DC Power supply on a chassis that has grounding lugs.
2 Out LED
2 Power supply handle
Documentation Feedback: doc-feedback-hpe-storage@hpe.com
Maintenance Procedures 102