Lathe getting fitted with 3 phase motor and vfd. My 75 year old GE finally gave it up. I drilled and tapped mounting plate for a Baldor motor, frame size 56. Hope she runs as quiet as the old hoss did. Two awesome buddies coming over to do the chores of wiring and lifting motor assembly back home.
Well its complete, and job well done. I think it took longer for them to program the VFD than all other work. They missed first step turning on the wiring strip, I believe. It would only go reverse, but they caught it and all is running very smooth.
It must, because it slows much faster than before, and we discussed decreasing spool up from 15 seconds down to 10 if its possible. Looks like VFD is going to be a time saver.
If you spend about $10 on the braking resistors, there is no few seconds delay. Yes, you will love the VFD.
The drives i use have them built in and you can program the braking time and braking time delay like when you turn it off it coasts for 2 sec then stops in 3sec or any time you set. It also has steps or ramps for starting
I dont have flush system, and have chambered 2 barrels since install. The 15 second restart, slows things down a bit having to stop and clear chips from reamer. I prebore to .440" 99% of the time, and that helps a lot. My drive is a Lenze SMVector seems like I watched a you tube video about a guy swapping out a motor and drive system and parts were recommended by Tubal Cain. The video mentioned the drive was well suited for better torque numbers at low speed than some other brands.
