Replacing Power Supply Units
Replacing Power Supply Units
This section describes how to replace 1HU, 7HU, and 9HU power supply units (PSUs).
The replacement procedures for the different PSU types are described in the following
subsections:
General Information
Replacing a PSU/1HU-R-AC(-200) or PSU/1HU-R-DC-200
Replacing a PSU/7HU-AC, PSU/7HU-AC-HP, or PSU/7HU-AC-800
Replacing a PSU/7HU-DC, PSU/7HU-DC-HP, or PSU/7HU-DC-800
Replacing a PSU/7HU-R-DC or PSU/7HU-R-DC-HP
Replacing a PSU/9HU-DC, PSU/X9HU-DC-800, or PSU/9HU-AC
Replacing, Upgrading, or Downgrading PSUs in a Mixed PSUConfiguration
Before replacing or upgrading PSUs in a protected configuration, check whether any
power consumption alarms are raised against the corresponding shelf.
• If a PWRCON-PROValarm is present at the shelf, you may still replace or upgrade
the PSU. However, note that there are pre-provisioned/unequipped modules in the
shelf which, if installed, would require more power than the PSU can supply. Refer
to PWRCONS-PROV (PSU Limit-Provisioned) to troubleshoot this alarm.
• If a PWRCON-EQUD alarm is present at the shelf, do NOTreplace or upgrade the
PSU. The modules equipped at this shelf require more power than the PSU can
supply. Refer to PWRCONS-EQUD (PSU Limit-Equipped) to troubleshoot this
alarm.
General Information
This subsection includes general information about power supply replacement in addition
to the replacement procedures described below.
Read and understand the relevant information in the FSP 3000R7
“
Safety Guide
” and the following instructions before you perform any
module replacement. Failure to do so could result in personal injury or
damage to the equipment.
If you encounter any problems with a power supply unit (PSU) the easiest fix is to simply
replace it with a new one of the same type and from the same manufacturer as soon as
possible. Do NOT attempt to operate a malfunctioning power supply!
After upgrades are made to the system, the installed power supplies may not provide
enough wattage to power all the components in the shelf. In this case, you need to
upgrade to PSUs with a higher wattage rating to meet the system’s power consumption
needs.
Note
Replacing or upgrading a power supply involves removing the original
PSU and installing the new one. In this respect, the replacement
procedures described below cover the the procedures for upgrading the
PSUs as well.
FSP 3000R7 Maintenance and Troubleshooting Manual - Product Release 16.2 - Document Issue A 697
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