The module with the safe stop function of the rotating tool continuously measures the current speed of the machine tool from the connected sensors, and compares this with the set target value (limit frequency for safe stop). The safety modules detect when the cut-off frequency for safe stopping is reached and then activate the safety output.
To safely stop the rotating tool or. parts of the machine that have the same stop time (motor, gears, shaft), the SRB-E-FWS-TS module can also be used as a safety relay with a timer (delayed safety shutdown, safety function STO). When the module reaches the set time, the safety output is activated.