So I had spare time/money to convert my 20" Jet drill press from step pulley to VFD.
Running a 4.5" pulley on the motor to the what I measure 7.5" step (bottom) on the spindle pulley. RPM range is fine for what I need but would like a little more grunt on the lower RPMs.
I'm using a Siemens V20 2HP VFD. I found the continuous boost parameter which is defaulted to 50%. At low RPMs, it would stall using my step drill but once I boosted it to it's full 200%, it's able to drill through the entire step drill without stalling. I have a Gates belt on there and it's sticky. At lower boost, I could stall the motor without belt slip.
From what I gather, it raises the voltage a little on the lower Hz? Just wanting to figure out if there are any downfalls to doing this (but just for short run, hobby stuff. Not production)? Not entirely VFD/motor savvy. It's going to an inverter rated 1.5HP Siemens motor.
Running a 4.5" pulley on the motor to the what I measure 7.5" step (bottom) on the spindle pulley. RPM range is fine for what I need but would like a little more grunt on the lower RPMs.
I'm using a Siemens V20 2HP VFD. I found the continuous boost parameter which is defaulted to 50%. At low RPMs, it would stall using my step drill but once I boosted it to it's full 200%, it's able to drill through the entire step drill without stalling. I have a Gates belt on there and it's sticky. At lower boost, I could stall the motor without belt slip.
From what I gather, it raises the voltage a little on the lower Hz? Just wanting to figure out if there are any downfalls to doing this (but just for short run, hobby stuff. Not production)? Not entirely VFD/motor savvy. It's going to an inverter rated 1.5HP Siemens motor.