10. I want to control the stepper motor with a plus or minus 10V or 4-20ma dc voltage. Is that ok?

Yes, but additional conversion modules are required.

11. I have a servo motor with an encoder feedback. Can I use a servo driver with only a speed measuring port?

Yes, an encoder to measure speed machine signal module is required.

12, can the encoder part of the servo motor be disassembled?

Disassembly is prohibited, because the quartz chip in the tray is easy to break, and after entering the dust, life and accuracy will not be guaranteed, requiring professional maintenance.

Mark

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