I'm looking for a circuit to extend my 24v linear actuator all the way out and then all the way back in when I push a button. I've tried mechanical switches but I want the cycle to be automatic.
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2\$\begingroup\$ Use the limit switches that latch, or use limit switches to control latching relays (or regular relays wired to latch electrically). \$\endgroup\$– DKNguyenDec 22, 2020 at 21:57
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\$\begingroup\$ There's no need to include your email address unless you're trying to receive more spam. \$\endgroup\$– BimpelrekkieDec 22, 2020 at 22:01
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\$\begingroup\$ Perhaps more crude-but-effective would be to detect an over current condition when the actuator stalls at the end stop; this may or may not be what you want to achieve. \$\endgroup\$– FrogDec 22, 2020 at 22:35
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Here's a circuit requiring only two standard electromagnetic relays.
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1\$\begingroup\$ It can be done with one DPDT relay and two SPDT limit switches if the relay coil and the motor can share the same DC power source. \$\endgroup\$ Dec 23, 2020 at 19:34
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1\$\begingroup\$ @AnalogKid, Yes, but I dropped my version of that, to avoid a retraction without a command, on resumption after a power failure. \$\endgroup\$– vu2nanDec 24, 2020 at 10:42