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6LE005550A
Function of the Energy trip unit
3.4 Managing alarms and logs
3.4.4
Customisable alarms
Customisable alarms make it possible to monitor any measuring event detected by
the Energy trip unit.
It is possible to define up to 12 alarms for a single trip unit. Each alarm is dedicated
to monitoring a single measurement.
A custom alarm is defined through the following parameters:
- Measurement monitored
- Activation threshold
- Deactivation threshold
- Activation time delay
- Deactivation time delay
- Priority level
Activation condition for customisable alarms
Activation of a custom alarm results from one of the following conditions:
- Positive breach of a threshold
- Negative breach of a threshold
- Equal to a measurement value
Activation by positive breach
In the case of a positive breach of a threshold, activation of the alarm is dependent
on the activation threshold being positively breached.
ON
T1
T2
t
S2
S1
Higher breach
Symbol
Meaning
S1
Activation threshold
S2
Deactivation threshold
T1
Activation time delay
T2
Deactivation time delay
Summary of Contents for h3+
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