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PowerLogic™ PM5500 series user manual Chapter 10—Alarms
HRB1684301-01 101
Active alarms
When an alarm condition becomes true (alarm = ON), the alarm is displayed on the
active alarms screen. The alarm details (for low, medium and high priority alarms) are
also recorded in the alarm history log.
Viewing active alarm details
1. Navigate to Alarm > Active.
2. Select the alarm you want to view (the latest ones appear on top). Press Detail.
NOTE: For unacknowledged high priority alarms, the Ack option appears on this
screen. Press Ack to acknowledge the alarm, or return to the previous screen if you
do not want to acknowledge the alarm.
The alarm details show the date and time of the alarm event, the type of event (e.g.,
pickup or unary), which phase the alarm condition was detected on, and the value that
caused the alarm condition.
NOTE: Alarm details are not available if the alarm priority is set to None.
Alarm history
The alarm history log keeps a record of active alarms and past alarms. When an active
alarm condition becomes false (alarm = OFF), the event is recorded in the alarm history
log and alarm notification (alarm icon, alarm LED) is turned off.
Viewing alarm history details
1. Navigate to Alarm > Hist.
2. Select the alarm you want to view (the latest ones appear on top). Press Detail.
NOTE: For unacknowledged high priority alarms, the Ack option appears on this
screen. Press Ack to acknowledge the alarm, or return to the previous screen if you
do not want to acknowledge the alarm.
The alarm details show the date and time of the alarm event, the type of event (e.g.,
dropout or unary), which phase the alarm condition was detected on, and the value that
caused the alarm condition to turn ON or OFF.
NOTE: Alarm details are not available if the alarm priority is set to None.
Alarm counter
Every occurrence of each type of alarm is counted and recorded in the meter. To view
the alarm counters:
1. Select Alarm > Count. The Alarms Counter screen displays.
2. Scroll through the list to view the number of alarm occurrences for each type of
alarm.
Rollover value
The alarm counters roll over to zero after reaching the value 9999.
Acknowledging alarms
This applies to high priority alarms. You can use the meter display or software to
acknowledge alarms.