Settings
User’sManual 25
4.10 Alarms
Alarms are used for alarming exceeded set values of the measured quantities.
Alarms setting
MT440 supports setting up to 16 alarms in two alarm groups. Alarms can be set for any of
measured parameters by setting condition and a limit value.
A time constant of maximum demand values in a thermal mode, a delay time and switch-off
hysteresis are defined for each group of alarms.
To each of two alarm groups an alarm output (solid-state or electromechanical relay) can be
dedicated.
Warning!
New values of alarms are calculated in percentage at modification of
connection settings. If Used voltage, current range is changed, limit values
of alarms will change proportionally.
4.11 Reset operations
Reset energy counters (E1, E2, E3, E4)
All or individual energy meters are reset.
Reset MD values
Current and stored MDs are reset.
Reset the last MD period
Current MD value is reset.
Reset alarm output
All alarms are reset.
To Next Page
Loading...
