I have a belt dryer (for t shirt printing) I got second hand so I'm not really sure why it is set up the way it is. It was working fine for years, aside from getting a little shock when I touched any bare metal hah. One day I heard the belt speed up looked over and there was a little poof of smoke and than the belt stopped.
It has a belt that is turned using a Dayton 4z537a gear motor. It says it's DC 90v 42amp. The motors speed is controlled by "powerstat variable transformer" this is plugged into 120v AC. One of the two wires going from the powerstat to the motor goes through a "lt 67 in5406" diode .
I'm not really sure what happened but what I figured out is that the motor was shorting to the ground for the heater and blowing the 3amp fuse in the powerstat. Isolating the motor from the heaters ground "fixed" it.
What I'm wondering is what should I do with this motor. I got it to work but it doesn't seem like it should be hooked up the way it is. Keeping the motor isolated (not touching any metal) from the ground isn't really practical. I shouldn't be getting current coming out of the body of the motor, is it broken ? Would hooking it up to a DC power supply stop it from shorting out? Should I try switching the wire the diode is on so maybe the body of the motor is neutral and turns the right way? I'm not even sure what it's doing..
If any of this sounds unusually dangerous let me know. Hah
It has a belt that is turned using a Dayton 4z537a gear motor. It says it's DC 90v 42amp. The motors speed is controlled by "powerstat variable transformer" this is plugged into 120v AC. One of the two wires going from the powerstat to the motor goes through a "lt 67 in5406" diode .
I'm not really sure what happened but what I figured out is that the motor was shorting to the ground for the heater and blowing the 3amp fuse in the powerstat. Isolating the motor from the heaters ground "fixed" it.
What I'm wondering is what should I do with this motor. I got it to work but it doesn't seem like it should be hooked up the way it is. Keeping the motor isolated (not touching any metal) from the ground isn't really practical. I shouldn't be getting current coming out of the body of the motor, is it broken ? Would hooking it up to a DC power supply stop it from shorting out? Should I try switching the wire the diode is on so maybe the body of the motor is neutral and turns the right way? I'm not even sure what it's doing..
If any of this sounds unusually dangerous let me know. Hah
