Question 9 of the 30 questions about the product: Can the controller be started and stopped by directly cutting off the power supply? The answer is, of course, no. When our salesperson went to the customer site, he found that some engineers often shut down the controller by directly cutting off the power supply. This behavior will cause the current of the electromagnet to be cut off, which will induce high voltage. It may even cause irreversible damage to the internal components of the controller, reducing the service life of our vibratory feeder controller. Therefore, today we list two external start-stop methods for the SDVC20-S Variable Voltage Digital Controller for Vibratory Feeder to start and stop the controller.

First, we can use the proximity switch sensor and connect it to the 12, 10, and 11 corners in blue, black, and brown.
Blue is the ground wire, black is the signal wire, and brown is the power wire.
It is worth noting that the SDVC20S model controller only supports NPN-type sensors.

Secondly, the 10 and 12 corners of the DB plug can be welded with a relay or PLC (NPN output), which can also start and stop the vibratory feeder controller externally.
Directly cutting off the power supply is a "violent" shutdown method, which not only damages the controller but also poses a safety risk.
If you have any questions when purchasing CUH's products, you can email sales@cuhnj.com, and we will answer them at any time.