APC InfraStruXure PDU Specifications Page 30

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PDU Display Interface
22 40kW 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
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.
No Panel Feed
Breakers Q2 & Q3 Open
The Q2 & Q3 circuit breakers are open, and the PDU is not
supporting connected equipment.
Atypical Bypass Mode
Alarm Active
The system state as set by the Q1, Q2, & Q3 breakers is in a
bypass mode.
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).
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