Identifying a failed power supply

When a power supply is in a fault condition, error messages identify which module has the faulty supply.

The library graphic on the GUI Library Dashboard shows which module has the faulty supply. Power Supplies do not have a UID, but the UID for the module with the failing power supply can be turned on to identify the location of the failing supply. If a module has a single power supply, that it needs to be replaced.

The lights on the back of the power supply indicate which one is in a fault condition. The White LED and Green LED are lit, when the power supply is operating normal. The White LED indicates that the AC power cord is plugged in and the power supply is getting AC power. The green LED indicates that the power supply is producing DC power.

If two redundant power supplies are installed in a module, the library cannot determine which supply has the fault. In this case, the lights on the power supplies must be used to determine which one has the fault.

If the White LED is off, make sure that the power supplies are inserted properly and double check AC power source and power cords. Replace the power supply if the White light does not come on when the power cord is plugged in.

When the White LED is on and the library is powered on, the Green LED should also be on. If it does not, replace the power supply.