Standstill and Low-speed Monitoring Units Ensure Safety while Improving Productivity

OMRON Corporation has announced the release of new products, the G9SX-SM standstill monitoring unit and G9SX-LM low-speed monitoring unit, to markets.

The G9SX-SM and G9SX-LM encourage operator safety by monitoring the speed of a machine's rotating parts to determine when it is safe for operators to enter protected areas.

The basic principle for operator safety is the physical separation of operators and machines. This is typically achieved by installing safety features such as a protective fence around hazard sources. However, even when a hazard stops operating in this type of system, the operator cannot immediately enter the area inside the fence, making it difficult to perform maintenance and other irregular operations. These drawbacks have caused problems in operator productivity.

The G9SX-SM and G9SX-LM directly determine the operating condition of a machine by monitoring the speed of rotating parts. The G9SX-SM monitors the back electromotive force (BEMF) of a machine's motor to judge whether the machine has stopped operating, and the G9SX-LM uses a proximity sensor to monitor standstill and speed conditions. The units are effective in the following situations.

G9SX-SM	G9SX-LM

Courtesy of Omron