Sensor-free PSR-MM35 over-speed safety relay
The TÜV-certified, safe PSR-MM35 over-speed safety relay monitors speeds without additional sensors. Based on the rotary field measurement of the drive, the integrated safety functions are reliably implemented up to SIL 3 or PLe.
Integrated safety functions:
- STO (Safe Torque Off)
- SLS (Safely Limited Speed)
- SSM (Safe Speed Monitor)
- SSR (Safe Speed Range)
Use in the food industry using the example of a packaging machine
Very cost-effective
Sensor-free technology eliminates the costs for additional sensors for speed monitoring. Save up to 50% of your procurement costs.
Measurement of the drive rotary field enables sensor-free motion monitoring
Maximum reliability
External sensors are susceptible to interference from environmental influences such as shock, vibration, and EMC. The rotary field measurement of the drive is independent of disruptive factors, allowing maximum availability of the system to be achieved.
Integrated safety functions for safe motion monitoring
Fast commissioning
Without additional sensors, there is no need for further assembly and adjustment work. The intuitive PSRmotion configuration software further reduces the installation and commissioning time of the over-speed safety relay.
Possible applications Sensor-free over-speed safety relays in use
Product overview Sensor-free PSR-MM35 over-speed safety relay
Versions at a glance
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PSR-MM35-1NO-1DO-24DC-SP
Sensor-free PSR-MM35 over-speed safety relay with Push-in connection |
PSR-MM35-1NO-1DO-24DC-SC
Sensor-free PSR-MM35 over-speed safety relay with screw connection |
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| Safety level | up to SIL 3 / PL e | up to SIL 3 / PL e |
| Evaluation | 2-channel evaluation of the rotating field of AC and three-phase motors | 2-channel evaluation of the rotating field of AC and three-phase motors |
| Overall width | 12.5 mm | 12.5 mm |
| Configuration software | PSRmotion | PSRmotion |
| Connection method | plug-in Push-in terminal block | plug-in screw terminal block |
| To the product | To the product |