I could use some help please. I need to build a resetting circuit that will do the following:
an actuator will make a switch and close a 120 VAC relay that will start a linear actuator. The actuator will drive an arm to the max travel and then return to the start. The end of travel switch will have to unlatch the relay, engage a relay to reverse the travel of the arm back to the starting point. In other words, it needs to make one complete cycle...move out,and then return.
The drive motor has four wires. Common,drive forward,drive backwards, and ground. The motor draws ten amps and is two horse power.
The initial actuation will be done by gravity. The switch will "latch" the relay, drive forward, strike the second switch and drop out. A second relay or set of contacts will need to pull in to reverse the travel. Once to the starting point again, the motor needs to stop and stand by for the next cycle. The circuit must remain at rest until the gravity actuator makes the switch once again.
I would prefer to not use a PC board, but rather hard wire the components. The unit will be outside in a dusty environment when in use. Not long term, just a few hours per month.
Thank you for any help.
Rob.
an actuator will make a switch and close a 120 VAC relay that will start a linear actuator. The actuator will drive an arm to the max travel and then return to the start. The end of travel switch will have to unlatch the relay, engage a relay to reverse the travel of the arm back to the starting point. In other words, it needs to make one complete cycle...move out,and then return.
The drive motor has four wires. Common,drive forward,drive backwards, and ground. The motor draws ten amps and is two horse power.
The initial actuation will be done by gravity. The switch will "latch" the relay, drive forward, strike the second switch and drop out. A second relay or set of contacts will need to pull in to reverse the travel. Once to the starting point again, the motor needs to stop and stand by for the next cycle. The circuit must remain at rest until the gravity actuator makes the switch once again.
I would prefer to not use a PC board, but rather hard wire the components. The unit will be outside in a dusty environment when in use. Not long term, just a few hours per month.
Thank you for any help.
Rob.