8. I want to directly control the servo motor through communication, is that ok?

Yes, it's also convenient, just speed issues, for applications that don't require too much response speed. If fast response control parameters are required, it is better to use the servo motion control card, which is usually equipped with DSP and logic processing circuit of high speed to achieve high-speed and high-precision motion control. Such as S acceleration, multi-axis interpolation.

9. Is it good to use switch power to power the stepper and dc motor system?

In general, it is best not to, especially large torque motor, unless more than twice the power required switching power supply. Because, when the motor works, it is a large inductive load, which will form instantaneous high pressure on the power end. However, the overload performance of the switching power supply is not good, which will protect the switch off, and its precise pressure stabilizing performance is not required, which may sometimes cause damage to the switching power supply and drive. It can be used as a conventional dc power source with ring or r-type transformer transformer.

Mark

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