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thank you very much for the answer, but I really don't understand how to check it, I only know in the case when drivers , old amps` are appeared with an analog input +-10v. Yes ,that this is probably a signal ribbon cable from controller board to driver.

vallder.com/product/pmsm-ac-servo/

Please share the error report.

that's right, on my market you can find a cheap servo set from 1 kw motor + driver for 200 euros., I have to check first if it has backlash , I mean ballscrews

that I know that the drivers are not expensive, or in that case I would have to install other motors, because there is no driver for such motors with an unknown type and with 8 wires.

Yes that's really confusing, the cable from the motor has 8 wires, I suspected that it might be a stepper,but isn't it. Yes, that's the only way I can move the axes, in ``jog'' mode.