Safe speed & standby relay

The new MOC3SA Speed Monitor from SICK (UK) offers improved speed limiting functionality on machine tool and general rotating machinery while enhancing the ease of set-up and maintenance.

Competitively priced, it enables engineers and factory managers to meet safety requirements with greater day-to-day production flexibility and less downtime.

"SICK's configurable safety controller, Flexi Soft, introduced the concept of a simple standstill monitor," comments SICK (UK) safety specialist, Iain Keetley-Smith.

"Now we are launching our new MOC3SA Speed Monitor as a dedicated safe speed and standstill relay to add further capabilities." A typical application for the standstill function would be to limit access to an area until the machine has come to a complete stop. Once this has been detected a solenoid is released from a safety gate switch allowing access.

Safe standstill is not always practical and in some instances personnel need access to the machine to carry out setup tasks. In this situation the machine needs to operate at a slow speed.

Should this speed increase for any reason the machine needs to come to a safe stop.

The MOC3SA is simple to setup through the use of rotary switches and two variants are available depending on the frequency being monitored.