SmartWire system for safety-relevant applications [t-head2-pg]

In most applications an emergency stop function and power-off when a guard or protective door is opened is required in addition to normal operational switching.

Although the SmartWire system is not designed for transmitting safety-relevant signals, it can be laid out to provide safety shutdown functionality using the configuration described below.

In an emergency, the control voltage for the contactor coils can be switched off through the safety relay’s Enable circuit.

Additional SmartWire power modules can be combined into contactor groups that can be switched off together in an emergency. With this circuit layout, controllers up to EN 954-1 safety category 1 can be set up.

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