Operating Instructions

Table Of Contents
Application examples
108366_en_01 PHOENIX CONTACT 55 / 69
9.3 PSR-CT safety switch connected to a safe
controller
Application description
Switch chain The application example shows three PSR-CT safety switches connected in series for mon-
itoring safety equipment. The switch chain is connected to a safe controller.
Central manual, monitored
start
The safe controller is equipped with a reset button for manual, monitored start.
The safety switches are wired for operation with autostart.
If at least one safety equipment item is opened and closed again, the safety function is reset
centrally via the reset button on the safe controller.
Notes
Phoenix Contact components used
3 x PSR-CT safety switch
WARNING: Loss of functional safety
Make sure that all safety switches and the safe controller have the same ground potential.
Also observe the documentation for all other devices used together with the safety switch.