Does ac motor use the upper hall sensor
There is little protection in domestic electric motors. Ordinary asynchronous induction ac motor does not require a general hall sensor. If you can monitor the speed of the motor, consider it.
There are temperature sensors that can monitor winding temperature and avoid burning coils; There is a near switch or other sensor switch that can monitor the number of revolutions, or block the protection.
If what you said is that on the electric motor, it is really an ac motor. The dc input to the controller, the controller output to motor 3 thread actually is the alternating current (ac). I understand you want to ask questions, I this explanation doesn't solve your problem.
