Power supply units

NAS Platform Series 5000 Hardware Reference

Version
15.1.x
Audience
anonymous
Part Number
MK-92HNAS089-09

The server has dual, hot-swappable, load sharing, AC power supply units (PSUs). The PSUs are accessible from the rear of the server.

The server monitors the operational status of the power supply modules so that the management interfaces can indicate the physical location of the failed PSU. LED indicators provide PSU status information for the state of the PSU.

Power supply unit details



Item Description
1 PSU retention latch
2 Power cord connector
3 PSU status LED
4 PSU fan exhaust
5 PSU handle
Note: There are no field-serviceable parts in the PSU. If a PSU unit fails for any reason, replace it. See Replacing a power supply unit for information about replacing a power supply.
Table. Power status LED
Status Meaning
Green DC output operating normally
Flashing Green No AC power or DC output fault
Off Standby power fault or neither PSU is powered from AC mains
Flashing Amber Internal PSU fault (over voltage, over-current, over temperature or fan failure)

If the Power status LED is off, unplug the power cable, wait 10 seconds, then reconnect the cable. If the Power Status LED remains off, the PSU has failed and must be replaced.

If the amber status LED is flashing, unplug the power cable, wait 10 minutes, then reconnect the cable. If the PSU Status LED remains off, the PSU has failed and must be replaced. See Replacing a power supply unit for more information on replacing a PSU.

Mains power connections are an IEC inlet in each power supply. Each PSU is only powered from its mains inlet. Two power feeds are required for the system. PSU units do not have an on/off switch. To turn on power, simply connect the power cable. To turn off the unit, remove the power cable.

When both PSUs are installed, if only one PSU is connected and receiving adequate power, the fans on both PSUs will operate, but only the PSU receiving power will provide power to the server.

Each power supply auto-ranges over an input range of 100V to 240V AC, 50 Hz to 60 Hz.

CAUTION:
If the server is non-responsive do not pull the power cord, contact Hitachi Vantara support.