text: <s>[INST] Kinetix 5700 and STO I have a dual inverter that I want to use STO via ethernet/ip. Can I use a selector switch to an input to a safety PLC and turn off the STO and still be considered safe? [/INST] Hello Fleener You can use a safety selector and connect it to a safety input module that is linked to your safety controller. Then in the controller safety task you can manage your STO output for the Kinetix drive. All this is possible. But you have to respect your safety assessment and do the safety check list (available in this manual for each function https://literature.rockwellautomation.com/idc/groups/literature/documents/rm/2198-rm001_-en-p.pdf ) Just to make sure that we are on the same line... when you mean turn Off the STO , you mean put the drive in safe torque off state (no motion possible) Again, all will depend on the safety level you need and your safety assessment regards \\n </s>