Frequently asked questions
What is the tbS setting and status on an ATS48 soft start?
28 September 2021Issue:
TBS function on the ATS48 softstart
Altistart 48, ATS48
All models and serial numbers
This parameter avoids starts in quick succession which may overheat the motor. The time delay starts when the motor changes to freewheel mode.
In 2-wire control, the motor is restarted after the time delay if the RUN command input is still activated.
In 3-wire control, the motor is restarted after the time delay if a new RUN command is sent (rising edge).
The soft starter displays "tbS" during the time delay.
If tbS displays unexpectedly, check the start/run circuit.