diesel-xj
Aluminum
- Joined
- Sep 27, 2011
- Location
- South Texas
Good evening everyone. first time poster here. I have a new to me Standard Modern 1340 lathe. the lathe is 3hp 220volt 3 phase with a built in brake. The machine also had a pneumatic chuck that was missing some piesces, So I removed the pneumatic chuck. I guess that is where I messed up. I did not take pictures of the wiring first. Well long story short, All the smoke leaked out of the Allen Bradley 70A86 coil in the mag starter. So I did some research on this forum, and thought the problem was that the coil was on the manufactured leg from my phase converter, so I got 3 new coils, for cheap, and changed the wires around so the coil had house 220 coming to it. Well the same thing happened, That darned smoke leaked out again.
My phone a friend electrician, pointed out that I needed to check the voltage of the coil. Well that was a light bulb moment, sure enough, the 70A86, is a 120vac coil. So to make this even shorter. I would like a part # for a 220VAC Allen Bradley coil.. Would a 70A83 work? also I saw a 72A06?
As part of the Chuck removal, we removed a transformer. I guess the transformer was wired in to the chuck and then the starter coil as a safety or something. Well I don't know how to wire the transformer back up, my phone a friend electrician suggested I just get a 220 coil, and be done with it.
I am running a homebuilt rotary phase converter, I had to get a bigger motor from the unit running the mill. So this is a new rotary converter from a 5hp motor. I checked the voltage at the lathe mag starter, on the L1,2,3
L1-2=238volts.
L1-3=212 volts
L2-3 = 207 volts.
That part is interesting to me. I sure am having fun trying to figure this out. I have learned a lot so far, look forward to learning even more.
thanks for any advice.
My phone a friend electrician, pointed out that I needed to check the voltage of the coil. Well that was a light bulb moment, sure enough, the 70A86, is a 120vac coil. So to make this even shorter. I would like a part # for a 220VAC Allen Bradley coil.. Would a 70A83 work? also I saw a 72A06?
As part of the Chuck removal, we removed a transformer. I guess the transformer was wired in to the chuck and then the starter coil as a safety or something. Well I don't know how to wire the transformer back up, my phone a friend electrician suggested I just get a 220 coil, and be done with it.
I am running a homebuilt rotary phase converter, I had to get a bigger motor from the unit running the mill. So this is a new rotary converter from a 5hp motor. I checked the voltage at the lathe mag starter, on the L1,2,3
L1-2=238volts.
L1-3=212 volts
L2-3 = 207 volts.
That part is interesting to me. I sure am having fun trying to figure this out. I have learned a lot so far, look forward to learning even more.
thanks for any advice.