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PDU Display Interface
24 60 kW InfraStruXure PDU — Operation and Configuration
PDU Alarms
This table lists all alarms that can be generated by the PDU, as displayed by the All Possible Alarms
option, with numeric variables between the < > characters. Logged alarms will display specific numbers
instead.
Alarm Condition Explanation
Input V <Ln-N> =<Value>
Voltage Under Limit
Input voltage of the phase indicated has dropped below the
configured lower limit.
Input V <Ln-N> =<Value>
Voltage Over Limit
Input voltage of the phase indicated exceeded the configured
upper limit.
Output V <Ln-N> =<Value>
Voltage Under Limit
Phase-to-neutral output voltage for phase <L-N> dropped below
the configured limit.
Output V <Ln-N>=<Value>
Voltage Over Limit
Phase-to-neutral output voltage for phase <L-N> exceeded the
configured limit.
Output I L<n>=<Value>
Current Over Limit
Current of output phase <N> exceeded the configured limit.
Output I L<n>=<Value>
Current Under Limit
Current of output phase <N> dropped below the configured limit.
Output Neut=<Value>
Current Over Limit
Current on the neutral wire for the output phases exceeded the
configured limit.
Output FDev=<Value>
Freq Out of Range
Frequency of the output current is above or below the range that
is configured as acceptable.
Input Transformer Temperature
Too High
The temperature of the PDU transformer exceeded the normal
limit, if applicable.
Main Breaker Open
Alarm Active
The Main Input Switch is Off.
<User Contact Name>
Alarm Active
A user-configured contact connected to the PDU monitoring unit
is reporting an alarm condition.
No UPS Input
Breaker Q1 Open
The Q1 circuit breaker is open, and the PDU is not receiving
power from the UPS.
Branch Ckt Pos: <nn>
Current Over Limit
Current on one of the poles of branch circuit breaker nn exceeded
the configured limit.
Branch Ckt Pos: <nn>
Current Under Limit
Current on one of the poles of branch circuit breaker nn dropped
below the configured limit.
Fan Rotation Failure
Alarm Active
There is a failure in one of the fans. The fan needs to be replaced,
if applicable.