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Safety switch px3 PRO


Hello, tell me how I can connect my safety switch to px3 pro. I understand that it is not provided. I read that it can be connected through an all-in-one module, but did not find where to connect it.
From the px3 in the module out the wires to the switch? Where to watch the pinout of the bus to solder my switch there?


You can find the pinout here


Thank you. I understand that I need the GND, SAF led and SAF sw outputs?


not GND but 3,3V


Thank you. All works good !