I decided to try something new. I've been using the Gecko G540 drive with no problems, but decided to go to larger motors than what the G540 could handle. Here is the new setup...
- 65V unregulated power supply
- PMDX-122 breakout board
- Gecko G201X drives
The problem is that the motors move in an erratic manner and make a horrible growling noise that resonates through the machine. It should be running at 600IPM on the rapids but instead is running at about 150, give or take, and bucking and jerking to the point that this 2000 pound machine is moving. It's a plasma with a 250 pound gantry.
Here's what I've checked...
- Power supply has a clean 63V while the axis is moving, so I know I have enough power.
- Driver test is clean. Nice flat line.
- Adjusted the Gecko's with no difference.
- Adjusted acceleration up and down and still get growling erratic motion.
- With the electronics shut down, you can move all axes by hand and motion silky smooth. No binding anywhere.
Any ideas on what could be causing this? I've used the every component before except the PMDX-122 BB. Could there be a setting in Mach that I'm missing?
Thanks