B-phase voltage lower limit, C-phase voltage lower limit, phase loss, A-phase current
upper limit, B-phase current upper limit, C-phase Current upper limit, A phase current
lower limit, B phase current lower limit, C phase current lower limit, total active
power upper limit, frequency upper limit, frequency lower limit, residual current
upper limit, first circuit temperature upper limit, second circuit temperature upper
limit, third circuit temperature upper limit , The fourth circuit temperature upper limit,
DI is disconnected.
When the monitoring object meets the action conditions, it also needs to meet the
time regulation to be truly activated. During the entire delay period, if the monitored
object returns within the limit, the monitoring alarm will not be activated. The unit of
action delay is second, and the value range is 0
～
120. Setting 0 means that once the
monitored object exceeds the limit, the alarm channel will be activated immediately.
For example: Monitor the upper limit of the A phase voltage and the lower limit
of the A phase voltage at the same time. If the voltage exceeds 120% of the rated
voltage for 5 seconds, an alarm is required, and if the voltage is lower than 80% of the
rated voltage for 3 seconds, an alarm is required. The settings are as follows:
Setting Items
Value
A - phase voltage upper limit action mode
open
A - phase voltage upper limit action value
120
Action time of A phase voltage upper limit
5s
The action mode of A phase voltage lower limit
open
The action value of A phase voltage lower limit
80
A - phase voltage off-line action time
3s
The figure below describes the above and below situations . The rated voltage is
220V, the upper limit is set at 120% of the rated voltage, the upper limit alarm value is
264V, and the lower limit is set at 80% of the rated voltage, and the lower limit is
176V. When the A-phase voltage value continues to be larger than the upper limit 5s,
the alarm is triggered, and the alarm is immediately cancelled when it is lower than
the upper limit. When the A-phase voltage value continues to be lower than the lower
limit 3s, the alarm will be immediately cancelled.