Sinister Purpose
Plastic
- Joined
- Aug 6, 2017
- Location
- Tigard
Converting 460v 3 Phase Lathe with 5HP Baldor to 230v single phase for use in my garage, because, well, I need it. Powered from 50 Amp breaker through twist lock 4 conductor 30A cord. Same breaker connected to welder, but not used simultaneously. Swapped 12 gauge cord for 10, two of the fuses to 40A. Instead of getting 2 pole contactor, I thought I would just get the 3 phase 40A with overload running through all legs in case someone wants to run the lathe on 3 phase someday (after I'm dead or in an Alzheimer's facility). Forward and reverse lever on apron wired to low voltage control on VFD. Speed control pot also direct to VFD. Maybe wire a jog/inch button to make indicating fun. Power to contactor is 120v from one leg of the 240v line to neutral. Momentary contact power button energizes contactor and stop button interrupts latching. I think I want the foot brake to actuate the VFD braking mechanism as the lathe came with braking resistors!
VFD is Invertek, labeled for 30A but asking only for 40A fuses. It's the biggest one that could do 5HP single phase. I'm looking at amazon dot com/dp/B0080HEVH8 for the contactor/overload, because but I don't need no stinkin' weird paths to ground.
I'm a newbee, apparently, so can't post real links yet...
Edit: That coil seems to be 208-240 VAC, not 120v.
Thoughts on this made in Brazil WEG? Even Allen-Bradley is made in China now, but certainly to a standard. Thank you for sharing your knowledge! I'm really enjoying reading old posts, and I believe I have learned enough to make me pretty dangerous!
Oh, lathe is Taiwanese, circa 1992, weighs over a ton, built pretty well in the style of Clausing/Colchester. It might be one of those mil spec models, came from Boeing. It's a little tired, but I'm fixing it. It has never been loved so much, and I have the grease stains on my crotch to prove it!
VFD is Invertek, labeled for 30A but asking only for 40A fuses. It's the biggest one that could do 5HP single phase. I'm looking at amazon dot com/dp/B0080HEVH8 for the contactor/overload, because but I don't need no stinkin' weird paths to ground.
I'm a newbee, apparently, so can't post real links yet...
Edit: That coil seems to be 208-240 VAC, not 120v.
Thoughts on this made in Brazil WEG? Even Allen-Bradley is made in China now, but certainly to a standard. Thank you for sharing your knowledge! I'm really enjoying reading old posts, and I believe I have learned enough to make me pretty dangerous!
Oh, lathe is Taiwanese, circa 1992, weighs over a ton, built pretty well in the style of Clausing/Colchester. It might be one of those mil spec models, came from Boeing. It's a little tired, but I'm fixing it. It has never been loved so much, and I have the grease stains on my crotch to prove it!
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