Flexible interlocking solution

03 May 2016

Pilz has added PSENmlock to its range of safety switches to offer safety gate monitoring and safe guard locking for the protection of personnel and processes to the highest levels up to PL e (of EN ISO 13849) in one device.

The slimline yet robust unit is said to be flexible to use and easy to install. It offers reliable door guard switch both for small or large, light or heavy, swinging or sliding doors, gates, covers and flaps. 

The actuator also promises high tolerance compensation and unrestricted functionality even with sagging gates. The use of a bi-stable solenoid enables the currentless guard locking system to reduce the energy consumption of the safety gate system. 

Diagnostic data is easily identifiable in many installation positions with LEDs on three sides of the housing supporting user-friendly diagnostics whatever the installation situation.

with a holding force of 7500 N and the integrated latching force of 30 N, the safety gate system prevents the guard from opening inadvertently. This makes it suitable for machines with a hazardous overrun that makes guard locking up to PL d or PL e essential, such as rotating knives, flywheels or robots. In addition, an integrated mechanical restart interlock prevents the guard locking system from being activated inadvertently, without the need for separate accessories. 

The integration of RFID into the tongue actuator means that, in the unlikely event that it breaks off in the switch, the failure is detected and a safe state is preserved.  

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