How to connect the emergency stop switch

1. Wiring diagram of emergency stop button switch, fuse, coil, leakage circuit breaker and contactor during circuit operation.

2. Wiring diagram of emergency stop button switch with fuse and contactor (simplest case)

III: Wiring diagram when emergency stop button, fuse, contactor and thermal relay are used together.

Four: emergency stop switch, leakage circuit breaker, contactor and thermal relay operation line control.

The most basic function of the extended data emergency stop button is to stop in an emergency to avoid mechanical accidents or personal accidents. However, due to the long-term operation of the machine, the lines, especially the emergency stop lines, may cause faults and open circuits.

At this time, if the emergency stop button uses normally open contacts, the line fault in the emergency stop part will not be found, and it will be too late to find it when the emergency stop button is used.

When normally closed contacts are used, when the line of the emergency stop part fails, the machine will stop at most and the loss is relatively small.