The display on the drive shows 26 amps with little variation at all speeds.
- At 176.14 RPM it shows -9.2% motor torque, 25.63 amps.
- At 977 RPM it shows 26.04 amps and 2.4% torque.
The motor spec shows a max of 178 ft-lbs torque, 460 VAC at 1182 RPM, 53.5 amps, 6 poles. The table jitters at speeds less than 300 RPM.
I am trying to determine if this is a problem with the parameter torque settings in the ABB drive or some kind of mechanical problem.
ABB ACS880-11-065A-5 37KW 50HP DRIVE, Motor is a Marathon Blue Max model WD 364THFS8391FU W 40HP 230/460 VAC 3 PHASE. Had other techs set it up but are still mystified as to the jitter. This planer has a combo chain drive thru a two speed transmission setup where it uses this drive and can be disengaged to use a 75hp dc direct drive for high speed planing. Has two 20' 10,000lbs tables bolted together. Runs fine with one table but attach the other and there is jitter, so torque, inertia etc could be a factor