Omron’s G9SX-SM Standstill Safety Monitoring Unit detects back electromagnetic force (BEMF) so it can monitor standstill status for machines--with no sensors required.
The system operates out of the box without sensitivity adjustments, or
users can manually adjust system sensitivity. Additionally, it can be
used with inverter-controlled systems without any threat of malfunction
due to the inverter’s dynamic brake or auto-tuning functions, The
G9SX-SM minimizes delay time by reducing extra wait time to safely