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PDU Display Interface
24 80kW InfraStruXure PDU—Operation and Configuration
PDU Alarms
This table lists all alarms that can be generated by the InfraStruXure 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
Message When
Condition Cleared.
Input V <Ln-N> =<Value>
Voltage Under Limit
Input voltage of the phase indicated has dropped
below the configured lower limit.
Input Voltage V <Ln-N>
Back In Range
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 Voltage V <L-N>
Back In Range
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 Phase <N>
Current Within 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 Neutral
Current Within Limit
Output FDev=<Value>
Freq Out of Range
Frequency of the output current is above or below
the range that is configured as acceptable.
Output Frequency
Back In Range
Input Transformer
Temperature Too High
The temperature of the PDU transformer
exceeded the normal limit, if applicable.
Input Transformer
Temp. Back to Normal
Main Breaker Open
Alarm Active
The Main input switch is Off. Main Circuit Breaker
Has Been Closed
<User Contact Name>
Alarm Active
A user-configured contact connected to the PDU
monitoring unit is reporting an alarm condition.
Alarm Cleared
No UPS Input
Breaker Q1 Open
The Q1 circuit breaker is open, and the PDU is
not receiving power from the UPS.
None
No Panel Feed
Breakers Q2&Q3 Open
The Q2 & Q3 circuit breakers are open, and the
PDU is not supporting connected equipment.
None
Atypical Bypass Mode
Alarm Active
The system state as set by the Q1, Q2, & Q3
breakers is in a bypass mode.
None
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 Within 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.
None