Hafiz Alsree said ...
The X1 3-pin connector is this:
Is this the STO output (Suppose to connect to STO input on X1 3-pin connector)?
If not, what is that for? Or it has nothing to do with STO?
Also, I have connected it to STO input and it has F602 fault.
But when I connect 24V DC to STO input, theres no F602 fault.