Howdy. Installed an air compressor auto-drain with help from this forum last time, hoping for similar success the second time around!
I purchased secondhand a beautiful Powermatic 1150A drill press, with a 3-phase Baldor motor. Sadly, I only have single phase 220v in the shop. So, I went on AutomationDirect and purchased a GS1-21P0 micro-drive to convert that single-phase signal to three-phase for the Baldor 1hp motor. Setup looks to be rather straightforward so long as I can navigate the menu structure.
A couple questions about my application:
1. This Powermatic drill press already has adjustable speed via a control switch at the top of the unit. Is there a benefit to using the speed adjustment on the VFD? The Baldor motor nameplate says 1,725 RPM and I believe the speed control at the top goes from 450 to 4800 RPM, which pretty well covers all woodworking use cases although I suppose it would be nice to go even slower than 450 RPM for occasional metal work.
2. Related to the previous question, is there a chance I could screw up the variable speed components of the drill press by fiddling with the motor speed at the VFD? The only warning I read in the manual was not to run the motor at greater than its 1,725 RPM.
3. The manual lists some application examples as categorizes them as "constant torque" and "variable torque" applications. I would imagine a drill press is going to be constant torque, correct? There is also a setting to require high torque on startup - would that be necessary here?
4. I purchased a NEMA enclosure for it as it's not really intended to be very dust resistant. This enclosure has standard electrical knockouts, but I was thinking about installing a vent at the bottom and a small computer fan on the top, just to get hot air out of the enclosure. I'm wondering if I can run this small case fan off the outputs on the VFD itself. There are the following outputs on the unit: R1 (relay output common), R10 (relay output normally open), and +10VDC output. Might any of these work for a standard case fan?
I purchased secondhand a beautiful Powermatic 1150A drill press, with a 3-phase Baldor motor. Sadly, I only have single phase 220v in the shop. So, I went on AutomationDirect and purchased a GS1-21P0 micro-drive to convert that single-phase signal to three-phase for the Baldor 1hp motor. Setup looks to be rather straightforward so long as I can navigate the menu structure.
A couple questions about my application:
1. This Powermatic drill press already has adjustable speed via a control switch at the top of the unit. Is there a benefit to using the speed adjustment on the VFD? The Baldor motor nameplate says 1,725 RPM and I believe the speed control at the top goes from 450 to 4800 RPM, which pretty well covers all woodworking use cases although I suppose it would be nice to go even slower than 450 RPM for occasional metal work.
2. Related to the previous question, is there a chance I could screw up the variable speed components of the drill press by fiddling with the motor speed at the VFD? The only warning I read in the manual was not to run the motor at greater than its 1,725 RPM.
3. The manual lists some application examples as categorizes them as "constant torque" and "variable torque" applications. I would imagine a drill press is going to be constant torque, correct? There is also a setting to require high torque on startup - would that be necessary here?
4. I purchased a NEMA enclosure for it as it's not really intended to be very dust resistant. This enclosure has standard electrical knockouts, but I was thinking about installing a vent at the bottom and a small computer fan on the top, just to get hot air out of the enclosure. I'm wondering if I can run this small case fan off the outputs on the VFD itself. There are the following outputs on the unit: R1 (relay output common), R10 (relay output normally open), and +10VDC output. Might any of these work for a standard case fan?