max225
01-08-2024, 10:06 AM
I'm running a stepper on a VMC with a Mesa 5i25 and 7i76 breakout board. It does not use encoders. I've had this machine running for several years now. A few days ago I went to start it up and the y axis moves with the slow speed but is very jerky and sometimes continues to move after I release the slow speed button and I can move the axis a bit and then linuxcnc shuts down with the error message "following error".
I switched the inputs on the stepper motor driver (https://www.oyostepper.de/category-16-b0-Schrittmotor-Treiber.html) and the problem follows the axis so I know it's not a problem with the driver or the motor. The wiring looks ok. I re-installed the 5i25 board on the motherboard but nothing changes. Could this be a bad 5i25 or 7i76? Or could my computer be working in some other way but not sending a clean signal for one axis? Has anyone experienced this kind of problem?
I switched the inputs on the stepper motor driver (https://www.oyostepper.de/category-16-b0-Schrittmotor-Treiber.html) and the problem follows the axis so I know it's not a problem with the driver or the motor. The wiring looks ok. I re-installed the 5i25 board on the motherboard but nothing changes. Could this be a bad 5i25 or 7i76? Or could my computer be working in some other way but not sending a clean signal for one axis? Has anyone experienced this kind of problem?