Sensing Mechanism

Noncontact proximity sensors:

PS Series Speed Switches when used with QS series sensors can monitor motion of any metallic target such as gear teeth, chain links, sprockets, bolt heads, etc.

Encoders, PLCs, etc.:

The pulse input to the PS Series Speed Switches can come from any 12 VDC device such as PLCs, encoders, photoelec-tric devices etc.

Electromechanical Sensing:

PS111 may also be used with a repetitive contact closure such as a limit or reed switch. The switch contacts will carry low voltage at low current; therefore the leads should be isolated from any other wiring which might induce noise into the sens-ing output.

Scan Loss Detector:

PS Series Speed Switches, when used with PLCs, act as safety devices to monitor if the PLC is going through its regular scans. If the PLC for any reason quits scanning its I/O ports, the pulses to the speed switch stops de-energizing its output.