Theory:Electromagnetic Relay Usage:Protective Protect Feature:Sealed Contact Load:Low Power Color:Yellow Type:safety relay
The so-called “safety relay” is not a “relay without a fault”, but is done when a fault occurs It has a regular action, it has a force-directed contact structure, which can ensure safety in the event of contact fusion, which is completely different from ordinary relays.
The safety relay is a necessary control part in a safety loop. It accepts safety input, and through the judgment of the internal loop, deterministically outputs the switching signal to the control loop of the device. Simply put, the safety relays are dual-channel signal types. Only when the signals of both channels are normal, the safety relay can work normally; in the working process, as long as any one of the channel signals is disconnected, the safety relay will stop output until the two The signals of all channels are normal and can work normally after reset.
1.The circuit is redundant with built-in self-monitoring.
2.The safety function remains effective in the case of a component failure.
3.The correct opening and closing of the safety function relays is tested automatically in each on-off cycle.
4.In order to prevent the transformer short-circuit, we have installed electronic fuse in the DC power supply.
1. When the emergency stop is released, the machine cannot restart suddenly;
2. In case of failure of the machine safety circuit, the machine power supply can be stopped;
3. When the safety circuit fails, the machine can no longer be started;