Problem: When I turn my spindle motor on past 500 RPM the motor shutters. If I increase the speed above 750RPM it happens much more often. The drive kicks off if I increase the speed to 1000RPM or greater. This problem started a few days ago. I've ran it for over a year with no issues related to the VFD.
VID 20121019 00000 - YouTube
The spindle speed is at 600RPM at the beginning of the video. At 9 seconds I increase the speed to 1000RPM and the drives quickly shut off.
Machine: Tree Journeyman 300 retrofitted in the early 90s with a Dynapath Delta 10 controller, a Baldor Flux Vector ZD14410-E VFD, and a paired 7.5HP Baldor motor.
Electricity: I have single phase 240V going to a phase converter and then to a transformer where I step up the voltage to 480V. I currently read 482V-490V range between all three phases. When the motor is at 500RPM the output from the VFD is approximately 153V @ 4.5A. When the motor shutters the voltage goes to 300V and approximately 17A. The drive shuts off above 20A, citing a "Phase-2 Fault". The 480V 3 phase inputting into the VFD doesn't fluctuate at all, even when the spindle motor shutters. I've never messed with a VFD. Any help on this matter would be appreciated as I don't really know where to start.
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VID 20121019 00000 - YouTube
The spindle speed is at 600RPM at the beginning of the video. At 9 seconds I increase the speed to 1000RPM and the drives quickly shut off.
Machine: Tree Journeyman 300 retrofitted in the early 90s with a Dynapath Delta 10 controller, a Baldor Flux Vector ZD14410-E VFD, and a paired 7.5HP Baldor motor.
Electricity: I have single phase 240V going to a phase converter and then to a transformer where I step up the voltage to 480V. I currently read 482V-490V range between all three phases. When the motor is at 500RPM the output from the VFD is approximately 153V @ 4.5A. When the motor shutters the voltage goes to 300V and approximately 17A. The drive shuts off above 20A, citing a "Phase-2 Fault". The 480V 3 phase inputting into the VFD doesn't fluctuate at all, even when the spindle motor shutters. I've never messed with a VFD. Any help on this matter would be appreciated as I don't really know where to start.
