What are the conditions for closing the ATS48 R2 relay?
When does the ATS48 R2 relay close?
The R2 relay has a dedicated function to control a shorting contactor.
The relay contact is normally open and will close when the motor is up to full speed.
The conditions for R2 closure are:
- if CLP = OFF, relay closes when the thyristors are full wave (angle = 1)
- if CLP = ON, relay closes when the thyristors are full wave (angle = 1) and the peak current estimated is less than 1.4 x In