PSR-MM20 over-speed and zero-speed safety relay

Over-speed and zero-speed safety relays

Safe motion monitoring

The PSR-MM20 safe over-speed and zero-speed safety relay is designed for motion monitoring. The PSR-MM20 detects the overspeed or zero speed of rotating parts in systems and machines.

Main features

  • Connection of two 3-wire PNP proximity switches
  • Monitoring of parameterizable speed thresholds
  • Flexible frequency setting up to 31.5 Hz (in 0.5 Hz increments) or up to 315 Hz (in 5 Hz increments)
  • Analog output (0 - 10 V) for monitoring speed values
  • 17.5 mm overall width

Your Advantages

  • Safe motion monitoring up to Cat. 4/PL e in accordance with EN ISO 13849-1 and up to SIL 3 in accordance with EN IEC 62061
  • Easy, software-free configuration directly on the device
  • Compatible with 3-wire PNP proximity switches as well as Pulsotronic push-pull proximity switches, making it very easy to meet sensor signal requirements