Hello to the forum.
I bought a used/old stock Falcon lathe that came with a VFS5 drive for the spindle motor. Model is 275-00
This drive is in the same power bus as the servo drives that are perfectly working (they move, accelerate at expected feeds) and no error is output from the spindle drive or from the servo drives. This makes me assume that the power supply is working as expected (although I have read some posts saying that the power supply can be problematic in the case of the spindle motor does not pass from a determined speed, when speeding in increments - that is also not the case).
The drive in analog velocity (this is the mode that we would like to use) behaves like on the video: https://youtu.be/PR91wa217js; other modes are also erratic (including the serial mode using the software)
No matter the velocity setpoint it will not go at more speed than the speed on the video (about 25rpm), and although it is not noticeable on the video, the movement is jerky, this is, not continuos.
We are able to connect to the drive using the Kollomorgen software, where a few tests were made, almost all inconclusive and basically always the same behaviour is registered.
Experiments done: By setting a very low Kp (that I asume to be proporcional gain), the spindle holds position on mode serial mode. We assume this as a good thing.
Using a external battery to set the setpoint the spindle also does not go more than the velocity on the video.
The only thing that we find strange is on the CONF file that the software exports that mentions a ERR 208 'C12'
Any tip is appreciated.
Thank you