Wiring limit switches in series?
Originally Posted by
CNCMAN172
Wire all the switches in parallel
Unless I’m missing something that won’t work as when one switch is pressed it will pull the input to 0v, while the other switches are still pulling the input to 5v.
According your limit switch schematic what you need to do is:
1. For the 1st limit switch, connect pin 1 to 5v, pin 2 to 0v.
2. For the 2nd limit switch, connect pin 1(pwr) to pin4 (output) of the 1st limit switch ,pin2 to 0v.
3. For the 3rd limit switch, connect pin 1(pwr) to pin4 (output) of the 2nd limit switch ,pin2 to 0v.
4. Continue this for all intermediate limit switches.
5. For the last limit switch, connect pin 1(pwr) to pin4 (output) of the preceding limit switch ,pin2 to 0v AND connect pin4 to the input on your breakpoint board.
So each limit switch is powered from the output of the preceding switch. If any of the preceding switches is pressed, the power line is set to 0v, resulting in the final output being set to 0v.
Cheers
Peter
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