Schneider Electric PM5300 Manual De Usuario
PowerLogic™ PM5300 series user guide
Chapter 7—Alarms
© 2014 Schneider Electric All Rights Reserved
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Many of the 1-second alarms are three-phase alarms. Alarm setpoints are evaluated for
each of the three phases individually, but the alarm is reported as a single alarm. The
alarm pickup occurs when the first phase exceeds the alarm pickup magnitude for the
pickup time delay. The alarm is active as long as any phase remains in an alarm state.
The alarm dropout occurs when the last phase drops below the dropout magnitude for the
dropout time delay. See Figure 7–2 below.
each of the three phases individually, but the alarm is reported as a single alarm. The
alarm pickup occurs when the first phase exceeds the alarm pickup magnitude for the
pickup time delay. The alarm is active as long as any phase remains in an alarm state.
The alarm dropout occurs when the last phase drops below the dropout magnitude for the
dropout time delay. See Figure 7–2 below.
EV1
—The power meter records the date and time that the pickup setpoint and time delay
were satisfied, and the maximum value reached (Max1) during the pickup delay period
(
(
T). Also, the power meter performs any tasks assigned to the event such as operation
of a digital output.
EV2
—The power meter records the date and time that the dropout setpoint and time
delay were satisfied, and the maximum value reached (Max2) during the alarm period.
Digital Alarms
The power meter has two digital alarms for alarming on status input status. By default, the
digital alarms are active when the associated status input is ON. The pickup and dropout
time delays are configured in seconds.
digital alarms are active when the associated status input is ON. The pickup and dropout
time delays are configured in seconds.
Figure 7–2: How the power meter handles setpoint-driven alarms
ΔT
ΔT
Max1
Max2
Pickup
Setpoint
Dropout
Setpoint
Pickup Delay
Dropout Delay
EV1
EV2
Alarm Period