Error Message:

POWER: ALE -12V

Applies to:

• All

Service Information:

The -12V supply is monitored by circuitry on the ALE board and the status is set in a bit in Xilinx. This bit resides in the status register which is queried by the MPE through the bus on the backplane connecting the MPE and ALE boards. These queries are performed as part of a regular status flag update.

Operator Action:

Cause:

• When the voltage of the -12V supply rises above -9.1V, the monitor circuit is tripped.

See Also: