Removing And Replacing A -48V Dc Power Supply - HPE Synergy 12000 Frame Maintenance And Service Manual

Removing and replacing a –48V DC power supply Removing and replacing a –48V DC power supply
WARNING: To reduce the risk of electric shock, be sure that the cable grounding kit is properly WARNING:
installed and connected to a suitable protective earth terminal before connecting the power
source to the frame.
WARNING: To reduce the risk of personal injury from hot surfaces, allow the power supply or WARNING:
power supply blank to cool before touching it.
For power specifications and calculators to determine electrical and heat loading for HPE Synergy, see the HPE Synergy Planning Tool
on the Hewlett Packard Enterprise website (https://dcia.itcs.hpe.com/
Two lugs ship in the kit with the -48V DC power supply. The two-hole lug specification is as follows:
Width – 0.41 in (10.41 mm)
Bolt hole size – 0.20 in (5.08 mm)
Hole spacing – 0.63 in (16.00 mm)
Install power supply blanks in any unused power supply bays.
Prerequisites Prerequisites
Be sure the -48V DC power cables are installed. For more information, see the HPE Synergy 12000 Frame -48V DC Power Cable
Installation Instructions.
Be sure that a ground connection to the HPE Synergy 12000 Frame has been properly installed. See Installing the DC power
grounding kit or the document that ships with the kit.
Gather the following tools:
Torx T-25 screwdriver
Crimper
Procedure Procedure
1. If using zip ties, unfasten the reusable zip tie. Retain for replacement.
2. Disconnect the power cord from the power source.
3. Squeeze the handle, and then pull the –48V DC power supply from the frame.
CAUTION: CAUTION:
To prevent improper cooling and thermal damage, do not operate the frame unless all device bays are populated
https://dcia.itcs.hpe.com/).
Removing and replacing a –48V DC power supply 73