ROTAS Programmable Rotational Speed Monitor

The ROTAS programmable speed monitor measures the roational speed of machines and systems. It detects the signals of most non-contact speed and motion sensors such as Hall effect, magneto-inductive, magneto-resistive and others. If the measured value exceeds or falls below a preset limit value the alarm relay is automatically switched. The following types of conditions are typically monitored.

Over speed monitoring with reset switching delay
An over speed condition triggers the alarm relay. Once the speed has fallen below the hysteresis value and the rest time delay has expired, the alarm relay resets to normal.

Under speed monitoring with run-up delay
An under speed condition triggers the alarm relay. Monitoring does not start until after the signal of the external start trigger has de-energized and the starting delay time has elapsed.

Remote speed monitoring using the analog output
The analog output can be used to remotely monitor machinery rotational speed. This combined with the alarm functions provides an economical soulution for your speed monitoring applications.

Industry Applications
The speed monitor has numerous applications in many areas of the technology, whether it be for protection of personnel, machines or manufactured products, to ensure that a plant operates at optimum efficiency, or for speed-dependent switching of system functions in a process.