text: <s>[INST] PF753 drive with safe stop hi I am using a PF753 drive for on of my projects.(20F11GD034AA0NNNNN).The control panel has a E-stop circuit present with a potential free contact. Can i program the TB1-Di2 pin as a Safe stop.Is the safe stop option module 20-750-S1 is necessary for the safe stop to work? [/INST] http://literature.rockwellautomation.com/idc/groups/literature/documents/rm/750-rm001_-en-p.pdf You should read this manual carefully. The short answer is yes, you do need the card if you want a safety function. The digital input you reference can be used as a STOP, but it is not a safety stop. \\n </s>