Any standard lever-actuated microswitch, with contacts rated at 15A 24VDC or better (based on the rating of the relays in the photo, and assuming those relays are suitable) should do. If the actuator is in a hostile environment then a sealed switch would be advisable.
2) Wont this hinder the up part if the ground is cut off when it hits the lever?
Yes. The actuator circuit shown has no provision for reversing the direction of travel.
If, however, the intention is to add components to reverse the power polarity, then the diode (if suitably rated to handle the actuator current) will provide a path to complete the circuit.
you get your 3-pos momentary switch as control input.
there are two relays and two limit switches to handle actuator current and stop it at FWD or REV limit
you get your 3-pos momentary switch as control input.
there are two relays and two limit switches to handle actuator current and stop it at FWD or REV limit
you are welcome. i can't see your attachment but as long as it works, you should be fine. important thing about such circuit is ablity to back off from trip position. for example if you trip Forward limit. you must not be able to continue running forward but you also must be able to go back.
The two limit/diode method. I hope you can understand w/o a picture.
Suppose you drew two Normally closed limit switches with a diode in series with each.
The diode "selects" the direction that the "limit" is valid.
Now put the two series combinations in parallel.
The above circuit goes in series with the actuator power.
Alright just got around to jooking this up and i started out with the "up" relay and hooked it up as stated in the diagram and nothing happens once i turn the relay on...
if you energize relay on the left, motor will not run unless the switch is on (to bypass diode you inserted, because in this case diode is reversebiased).
if you energize relay on the left, motor will not run unless the switch is on (to bypass diode you inserted, because in this case diode is reversebiased).