I don't suppose there's an extra NC contact on the motor switch/relay? If so, a relay would do, otherwise two relays.
m On Wed, Dec 7, 2022 at 12:40 AM Jim Brain via cctalk <[email protected]> wrote: > This might be a bit off topic, so forgive me if so. > > The issue is a 24VAC motor with one connection to 24VAC and the other > gated via two switches. The first switch is a momentary one and the > second is in parallel and connected to the motor. A long enough > momentary depression on the first switch actuates the electric motor > enough to close the second switch, which then stays closed for 1 > revolution. > > The problem is that a quick enough press and release of the first switch > does not allow the motor to move far enough to close the second switch. > > Given the configuration, my general plan was a small one shot timer > circuit that energized when the switch was initially depressed and then > closed a relay in parallel with the first 2 switches, with a time period > that was 1/10 to 1/2 the time of the motor revolution. a quick close and > release of the first switch would start the timer, which would then > close the parallel switch and then open it a short time later, and then > the motor switch, which would still be closed, could signal the end of > the cycle. > > But, I thought I'd ask around and see if a simpler option was available. > > Jim > > -- > > Jim Brain > [email protected] > www.jbrain.com > >
