Quote Originally Posted by mitchejc View Post
Decided to chuck 4 of the safety circuit relays and replaced it with an Arduino which resulted in a simpler overall setup. E-Stop button works as expected and any fault or position loss will stop all motion.
Looking good but how do you work out that an Arduino can replace Safety Relay/s.?. . . . It's a Computer.!! . . . . . . In which case you may have just saved your self the hassle altogether and just used the I/O you had already.! (unless you didn't have enough I/O to start with.!)