Operation
MNC-0400-012
4 of 8
Revision D
Power Supply Voltage Fault
The power supply voltage fault circuit will latch immediately
when a fault in one of the three internal power supply voltages
occurs. A voltage fault may be cleared by sending the Fault
Reset command.
SSPA Overtemperature Fault
A SSPA over-temperature fault will clear itself once the
temperature of the base plate is reduced to a safe operating
level. Power supply voltage will automatically be enabled when
the over-temperature fault clears.
Note
An over-temperature fault should be cause for immediate
maintenance action as it is an indication of a fan failure or blocked air
passage(s).
Reverse Power Fault
The reverse Power Fault is set to Active Low when the reflected
power exceeds P
rated
-7 dB.
Clearing Faults
Faults can be cleared by sending the Fault reset Command (‘B’)
If the fault condition occurs frequently, maintenance action is
required.
