Seaman
Aluminum
- Joined
- Nov 25, 2009
- Location
- Ronceverte, WV
Rebuilding P&W twin spindle gun drill and the next step is to replace the ancient spindle drive motors and the change pulley setup with dual VFD's.
Since these are basically spindle drives, I'd like the most precise RPM control. I know it is only drilling, but we are just talking about adding an encoder to a drive unit that will already accept it. At least that what I'm thinking/reading. I really don't know and haven't read anything that says "here's how stable the programmed RPM will be", without an encoder. There a reason CNC mills and lathes have spindle encoders for varying loads.
Anyhow, I'd appreciate thoughts on this.
Second issue, I haven't seen a "package" available out on the webs that checks all the boxes. Yes, there's motor/drive combos, but add a remote panel, encoder, and a motor that will accept an encoder, brake resistors, and I'm not seeing anything but parts. If that's the route, I can do it, but I'd prefer a system that has some factory support or experience putting this stuff together. If anyone can offer up a supplier, great. I'm not looking for cheap, just fair and good. Motors are 5hp 3600 rpm.
Thanks
Dave
Since these are basically spindle drives, I'd like the most precise RPM control. I know it is only drilling, but we are just talking about adding an encoder to a drive unit that will already accept it. At least that what I'm thinking/reading. I really don't know and haven't read anything that says "here's how stable the programmed RPM will be", without an encoder. There a reason CNC mills and lathes have spindle encoders for varying loads.
Anyhow, I'd appreciate thoughts on this.
Second issue, I haven't seen a "package" available out on the webs that checks all the boxes. Yes, there's motor/drive combos, but add a remote panel, encoder, and a motor that will accept an encoder, brake resistors, and I'm not seeing anything but parts. If that's the route, I can do it, but I'd prefer a system that has some factory support or experience putting this stuff together. If anyone can offer up a supplier, great. I'm not looking for cheap, just fair and good. Motors are 5hp 3600 rpm.
Thanks
Dave