I followed the following diagram I found on this site (http://forum.allaboutcircuits.com/showthread.php?t=23249&highlight=automatic+reverse) from SgtWookie for my project. I have a round hay baler that uses a 6" travel linear actuator to move the twine across the bale as it spins.
I ordered a general purpose DPDT 12v 30A relay (part number PB349-ND) and some 1N4004 diodes from digikey and installed it on my baler. During testing, it worked fine.
Testing was done with a multmeter turned on to monitor DC voltage before I hooked up the actuator. Both limit switches worked as well as the switch to start the cycle.
I believe I may have burned out a diode. The system is now "stuck" in one position. The limit switch at s2 works, as it stops the actuator. But linear actuator will not reverse and coil is energized as soon as power connector is plugged in.
Am I using the right size diodes for a 12V system with an actuator that could draw up to 20 amps under full load? (if i remember correctly when I bought the actuator) it may be 30 amps.
Thanks.
Conn
I ordered a general purpose DPDT 12v 30A relay (part number PB349-ND) and some 1N4004 diodes from digikey and installed it on my baler. During testing, it worked fine.
Testing was done with a multmeter turned on to monitor DC voltage before I hooked up the actuator. Both limit switches worked as well as the switch to start the cycle.
I believe I may have burned out a diode. The system is now "stuck" in one position. The limit switch at s2 works, as it stops the actuator. But linear actuator will not reverse and coil is energized as soon as power connector is plugged in.
Am I using the right size diodes for a 12V system with an actuator that could draw up to 20 amps under full load? (if i remember correctly when I bought the actuator) it may be 30 amps.
Thanks.
Conn