Hello, I have a problem with a Mazak SQT200M in our factory. Recently, we refurbished the motor, and after reinstalling it, alarms started going off. We pinpointed the issue to the MDS drive (MDS-B-SP-260). We replaced it with a new one, but we're still experiencing the following issues:

- The spindle load is constantly at 120%.
- The spindle speed remains semi-constant at 50 RPM, no matter what speed we set.
- The spindle orientation doesn't work (it keeps spinning with the issues above).

We checked the parameters, and the encoder does show the current spindle speed. The MDS drive has been replaced, and we inspected the wiring, though we're not 100% sure about that since we're not electricians.
I'm an apprentice, and we're running out of options. I've attached a link to a video showing the spindle set at 30 RPM, but the load and speed issues are also present in jog mode. Any help would be greatly appreciated!