396foxRN
Well-known member
I've completely stripped the huge Hammond of Kalamazoo pedestal grinder and plan to paint it tomorrow and reassemble it soon. I've had it running before, off of 220v single phase into a VFD and then into the switch and motor. However, when I bought it, apparently at some point in its life, the wiring for the shield lamps had issues, and the wiring to the lights was just cut off. I plan to rewire the lamps and have them functional again, but I am fairly ignorant of 3 phase wiring. I figure I have two options:
1. Run a separate hot/ground/neutral from the lamps, to a lamp switch, to the single phase INPUTS on the VFD. This would give me 110v/neutral/ground....right?
2. Run a hot from one of the VFD OUTPUTS to a 220-to-110 transformer, mounted in the pedestal frame of the grinder, to a lamp switch, to the lamps. There was, when I bought it, what appeared to be a very old and very heavy (for its size) transformer mounted this way when I bought it, but it did not look original to the unit. This would probably be the easier way to do it, compared to idea #1....right?
This is a 10" Hammond setup that I assume to be from the 40's era, as a lot of the stuff that was auctioned from this plant closing dated back to the 30's.
Thanks for the inputs!
1. Run a separate hot/ground/neutral from the lamps, to a lamp switch, to the single phase INPUTS on the VFD. This would give me 110v/neutral/ground....right?
2. Run a hot from one of the VFD OUTPUTS to a 220-to-110 transformer, mounted in the pedestal frame of the grinder, to a lamp switch, to the lamps. There was, when I bought it, what appeared to be a very old and very heavy (for its size) transformer mounted this way when I bought it, but it did not look original to the unit. This would probably be the easier way to do it, compared to idea #1....right?
This is a 10" Hammond setup that I assume to be from the 40's era, as a lot of the stuff that was auctioned from this plant closing dated back to the 30's.
Thanks for the inputs!