Zero-speed and over-speed safety relays

Movements under control

Movements under control

Zero-speed and over-speed safety relays monitor rotating parts and shut down safely in the event of an emergency.

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Excessive speeds pose a danger for people and machinery. Using PSRmotion zero speed and overspeed safety relays from Phoenix Contact, you can shut down quickly and safely in the event of an emergency.

Your advantages

  • Flexible use with three operating states that can be selected
  • Fast startup by parameterizing directly on the device or via free software
  • Maximum compatibility, thanks to monitoring movements using all common sensor types
  • Maximum protection against manipulation due to innovative protective mechanism

Highly-compact downtime monitoring without additional sensors

Sensor-free zero-speed relay  

Highly-compact PSR motion zero-speed relays do not need any additional sensors

With the narrow PSRmotion zero speed relays, machine downtime is monitored without the need for additional sensors, and an interlocking device, for example, is actuated. To detect downtime, a voltage induced in a motor winding is evaluated.

Thanks to application-specific setting options, PSR motion is extremely flexible to use, both for machines with and without frequency inverter.

The highly-compact zero-speed relay saves up to 70% of space. This makes it ideal for retrofitting.

Software-parameterizable speed monitoring

PSR-RSM4 zero speed and overspeed safety relays  

PSR-RSM4 zero speed and overspeed safety relays

You can easily integrate the PSR-RSM4 zero speed and overspeed safety relays into your system, thanks to the free intuitive PSR-CONF-WIN software. You can set the speeds and sensor types in the graphical user interface with just a few clicks of the mouse.

All common incremental encoders, linear measuring systems or proximity switches can be used for sensor connection. If motor feedback systems are already present, we can provide you with pre-assembled cable adapters.

Phoenix Contact UAB

Svitrigailos str. 11M
03228, Vilnius
+370 5 2106321

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