Single Channel Emergency Stop Safety Relay – Typical Applications
A single channel emergency stop safety relay is designed to connect safety devices, such as interlock switches, to the machine control circuit. It provides a switching action from the safety interlock switch, and can act as an intermediate relay to distribute a signal to multiple devices. The relay compares input and output signals, and provides failure to a safe condition if there is a failure in the interlocking interface control circuit.
- Interlocked guards, light curtains, laser scanners, safety mats
- Machine input/output signals
Without a single channel emergency stop safety relay, faults and short circuits in a safety interlock switch can go undetected and can create a hazardous situation. The potential for faults exists in the power supply, relays, and switches as well as their associated wiring.
When using a single channel emergency stop safety relay, the wiring is monitored and compared. If a failure occurs in one area, it will be detected and a stop signal will be sent to the safeguarded machine.