Motion-failure alarm from Siemens supports commissioning and configuration

Siemens now sells a Sitrans WM300 motion failure alarm (MFA) to detect changes in the motion and speed of rotating, reciprocating, or conveying equipment. This alarm acts as an early warning system for a plant’s machinery, alerting users to potential problems in their operations before they occur or develop into something more serious. This versatile unit excels in a variety of applications in industries such as mining, aggregates and cement, power generation, and food and beverage.

Multiple machines can be monitored with twin independent probe inputs and two inputs for differential speed detection (DSD) within a machine monitoring solution such as a belt conveyor comparing the head to tail pulley speeds. An optional analog output module can convert the WM300 into a non-contacting tachometer (NCT) with 2-mA outputs.

This space-saving device replaces many older MFA style controllers, reducing both wiring time and the space needed in cabinets. In fact, four Sitrans WM300s can fit in the same footprint as that of older motion failure alarms. Other new features include the ability to monitor multiple machines at once with twin, independent probe inputs and an additional two inputs for differential speed detection.

With intuitive, easy-to-configure digital programming, users gain precise set point control of machines or processes for accurate alarming that can prevent potentially costly downtime or damage.

With over- and under-speed alarming, Sitrans WM300 MFA also features an optional analog output module, which can convert the device into a non-contacting tachometer with 2-mA outputs. And with its adjustable 0 to 60-sec time delay, this intelligent alarm allows the monitored equipment to accelerate to normal running speed before monitoring begins. Motion failure alarms monitor a variety of equipment, including tail pulley shafts, driven pulleys, motor shaft sensing, belt or drag conveyors, and fans and pumps.

In the mining, aggregates and cement industry, for example, Sitrans WM300 MFA monitors bucket elevators and screw conveyors for continuous conveying. In the food and beverage or chemical industries, the alarm monitors mixers to ensure nonstop operation. Compact, rugged and reliable motion failure alarms provide a large impact with economic investments … ensuring peace of mind and protecting a plant’s critical processes. For more information, visit www.usa.siemens.com/wm300.