Hi,
This is my first post but I am a long time lurker. I am hoping through the colletive wisdom of the members I might get some guidance on the Allen Bradley 709 that is mounted to my Gemco Shaper. The shaper has a 3 phase 3 HP Baldor Motor that was originally wired for 480 volts. I rewired the motor to 240 and changed the "N" type heater coils to the proper size for the higher amps the motor will run at on 240 volt.
The intermittent problem I now experience is sometimes when I hit the start button, the motor jumps and the switch will smoke (not good I know). I have to jog the switch and then the motor will start and run properly. It almost seems like the coil is not strong enough to activate the switch. Sometimes, it works fine with no issue whatsoever. After initially experiencing the problem today, I kept turning the motor on and off throughout the day and it worked perfectly. Nothing is getting hot and the motor runs fine. Aside from any advice and guidance my question is am I suppose to change to coil in addition to the heaters I already changed?
I attached a photo of the switch including the coil. Making things even more challenging is the decal on the inside cover is oil soaked and almost impossible to read.
Thank you in advance for any and all comments, suggestions, guidance etc... I sure appreciate it as I am at a loss how to fix it.
Thank you.
Joe
This is my first post but I am a long time lurker. I am hoping through the colletive wisdom of the members I might get some guidance on the Allen Bradley 709 that is mounted to my Gemco Shaper. The shaper has a 3 phase 3 HP Baldor Motor that was originally wired for 480 volts. I rewired the motor to 240 and changed the "N" type heater coils to the proper size for the higher amps the motor will run at on 240 volt.
The intermittent problem I now experience is sometimes when I hit the start button, the motor jumps and the switch will smoke (not good I know). I have to jog the switch and then the motor will start and run properly. It almost seems like the coil is not strong enough to activate the switch. Sometimes, it works fine with no issue whatsoever. After initially experiencing the problem today, I kept turning the motor on and off throughout the day and it worked perfectly. Nothing is getting hot and the motor runs fine. Aside from any advice and guidance my question is am I suppose to change to coil in addition to the heaters I already changed?
I attached a photo of the switch including the coil. Making things even more challenging is the decal on the inside cover is oil soaked and almost impossible to read.
Thank you in advance for any and all comments, suggestions, guidance etc... I sure appreciate it as I am at a loss how to fix it.
Thank you.
Joe
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