Omron STI G9SX-SM Safety Monitoring Unit cuts wait time
Omron Scientific Technologies Inc. provides sensor-less machine standstill monitoring and improves productivity by reducing extra wait time to safely access machine.
Omron Scientific Technologies Inc. introduced the G9SX-SM Standstill Safety Monitoring Unit. The G9SX-SM monitors standstill status for machines with varied hazardous part stop times, without sensors. The system can operate out of the box without sensitivity adjustments, or users can manually adjust system sensitivity to the specific needs of each machine. It can be used with inverter-controlled systems without threat of malfunction due to the inverter's dynamic brake or auto-tuning functions.
When a hazard does not stop immediately it is necessary to prevent access to the hazardous area until the motion has stopped. The G9SX-SM improves productivity by minimizing the delay time caused by such hazards by sensing the stop motion instead of waiting for a count down timer to expire.
The G9SX-SM detects back electromagnetic force (BEMF) that is generated when the motor rotates to determine whether the motor is rotating or in standstill condition. It determines that the motor has stopped when it detects that the BEMF falls below a set criterion. The system operates on 24 V dc, but can monitor motors up to 480 V ac. It provides 3 safety standstill detection outputs and 2 auxiliary outputs, and is available with spring-cage or screw terminal blocks. Detailed LED indicators enable easy fault diagnosis.
Standstill and low-speed monitoring is required by international standards for machine tools, printing presses and other applications. The G9SX-SM is certified to all relevant North American and International safety standards, meets Safety Category 4 (EN954-1) requirements, and is engineered to deliver reliable standstill operation in these applications.
Omron Scientific Technologies Inc. is a North American provider of automation safeguarding products and services. Omron STI safety products are used to protect workers around machinery, automated equipment and industrial robots. Products and services serve a wide variety of applications and markets, the company said, including semiconductor, automotive, medical, electronics manufacturing, packaging and consumer markets.
Donation : Omron Foundation, Inc. (Schaumburg, IL) and Omron Corporation (Kyoto, Japan; www.omron.com) have donated a total of $75,000 to support victims and aid reconstruction in the areas devastated by the massive earthquake that struck Haiti on January 12.
- Edited by Mark T. Hoske, editor in chief, Control Engineering , www.controleng.com.
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