Safe speed monitor

Monday, 19 October, 2009 | Supplied by: Treotham Automation Pty Ltd


The Wieland SNS 4084K standstill monitor enables machinery operators in process industries to safely monitor two input signals in the 0.1 to 99 Hz frequency range.

The 45 mm housing fits into standard racks and operates on 24 VDC nominal power. The unit provides four semiconductor outputs with automatic or manual start and can operate in the -25 to +55 °C range.

The unit’s main function is safe monitoring of the frequency of pulses on the inputs I1 and I2 of the device. If the frequency of the pulses is higher than the adjusted frequency, the outputs Q1/Q2 are switched off. This monitoring function is used for detecting a standstill or limited machine speed.

The signal can then be used to ‘inch’ the machine at low speed or unlock solenoid locks at zero speed.

The sensors for monitoring the standstill can be, for example, two inductive proximity switches connected on I1, I2, or an incremental sensor with HTL outputs connected on I1-I3.

Online: www.treotham.com.au
Phone: 1300 65 75 64
Related Products

Emerson DeltaV automation platform

The Emerson DeltaV automation platform features supervisory control and data acquisition (SCADA)...

FleetSafe Proxicam AI pedestrian detection system

The FleetSafe Proxicam AI pedestrian detection system has been designed to prevent injuries and...

Incident Zero Laser Safety Halo exclusion zone for mobile plant

The Incident Zero Laser Safety Halo is a low-powered red laser light that delineates a distinct...


  • All content Copyright © 2024 Westwick-Farrow Pty Ltd