Safety speed monitoring relay

ReeR presents a solution, performant and flexible, for monitoring speed in different conditions and applications. It is called SV MRO and is simply to be configured and run in complete safety.

SV MR0 safety speed monitoring relay by ReeR for overspeed and Zero speed control uses standard sensors as pick-ups. Safety level up to PL e - SIL 3. The speed monitor is certified to EN ISO 62061 / SIL3 and EN ISO 13849-1 Cat4/PL with two non
- safety related PL e sensors used as pulse pick-up.
Flexibility. The small size (99 x 22.5 x 114 mm) and the wide range of working temperatures (-40 ... +55 ºC) make this module particularly suitable to monitor the maximum speed in various applications like: turbines for the generation of energy, centrifuges, attractions and rides for amusement parks, etc.
Of course can also be used in any plant as safe control of the zero speed or reduced speed for maintenance.

A “friendly” configuration. Three front panel selectors allow configuration of the speed threshold. When the measured speed raises over the threshold, the relays outputs open.
Two selectors allow to set numeric values from 01 to 99. A third selector allows to set a multiplier to apply to the numeric value obtained with the first two. The multiplier can be set in “Hz” or in “rpm” (Revolutions per minute).
An easy setting procedure prevent unintentional change or manipulation of the set values. Practically, the accidental movement of one or more selectors does not change the configuration of the module but generate an alarm condition. To change the configuration you need to follow all the steps of the procedure.