Stop button on mach4 and 424 board

[Kane17752]

I have the 424 board start my spindle via the relay output on start cycle.  If I press the stop button, the spindle stops, but on cycle start, the spindle does not restart.  Suggestions on this appreciated. 

[Steve Stallings]

This is normal operation.

Stop is not intended to allow you to resume operation. For that purpose
you should use Feed Hold. You can then use the Spindle ON/OFF button
to stop the spindle to clear chips or whatever, and then use it again to
start the spindle again before you hit Cycle Start to resume.