Implemented security features:
– voltage asymmetry between the phases
– total loss of phase
– symmetrical voltage drop in three phases
– change the order of phases
– exceeding of the phase upper voltage threshold >480 V
– exceeding of the phase lower voltage threshold <320 v=”” br=””>
Functioning
With the right voltage conditions the contacts of the sensor contacts are closed. In the event of a voltage anomaly the sensor disconnects contacts with the appropriate time-delay. Return of the network parameters to standard conditions will reactivate the contacts with the preset delay.
Indications:
Green LED [R]:
– lights – correct parameters, contact closed
– flashes – counting off the delay time of a next activation
Red LED [<U]:
– lights – voltage asymmetry or voltage below 320 V
– flashes ×1/s – incorrect phase order
– flashes ×3/s – voltage above 480 V
