How to create a pump control circuit to automatically empty a tank - I am looking to use limit switches and dpdt relays to manipulate the route of the motor. Whilst the energy is carried out the motor need to rotate one direction (route for this question isn't always crucial). Additionally, at this point (initialization) neither switch might be energized. The motor will rotate and move till it energizes the second restrict transfer (labeled transfer 2). At this point, the path of the motor ought to reverse. The motor and hardware will then pass closer to switch one. Once the motor reaches transfer one it ought to forestall completely (now not opposite direction again). Underneath is my basic wiring diagram. With electricity ( and - ) linked and restriction switches ls1 and ls2 disengaged, the best road available for current glide will be from the supply high quality ( ) to k1-1, then via k1-2, the motor, k1-five and four, and sooner or later via k2-1 and 2 to the supply terrible, (-).
With a purpose to cause the motor to rotate clockwise, and after a time it's going to interact ls1, ultimate ls1-c and nc, a good way to join the deliver superb to k1-eleven and permit contemporary to drift through the relay coil and into the deliver terrible via k2-1 and a pair of. Preliminary circumstance: no relays energized. One set of ry2's direct energy one course to the motor. Second situation: sw2 brought on, its no touch energizes ry2, which reverses motor polarity and latches itself (you will want a pair of diodes or every other relay touch set to accomplish both reversal and latching). Third circumstance: sw2 launched, ry2 is still latched, mechanism swings the other direction. Fourth condition: sw1 brought on, its no touch energizes ry1. An nc touch set on ry1 breaks ry2's latching circuit, and the same no contact latches ry1 on till strength drops away. The second one ry1 contact set's nc interrupts power to the motor.