Servo motor signal isolation amplifier

Servo motors will not improve the speed or quality of a 3D printer; in some areas, they may even be a negative optimization.
This is just for fun. If you don't have experience in automation/servo control debugging, it's recommended not to get involved in this.
 
Use the EL 6N137 ultra-high-speed optocoupler for direction and pulse, and a standard PC 817 optocoupler for enable and reserved signals.
This is designed for driving servo motors on the 3D printer motherboard (if your servo motor's high-speed pulse input interface is working properly, you don't need to use this module).
The test motor was an Inovance 620P. (Perhaps I didn't know how to configure it; the high-speed pulse interface input signal was normal, but the motor just wouldn't turn. So, I used this signal amplifier
 
to stick with the low-speed pulse interface.) Update: Some motherboards have weak I/O drive capabilities; if the speed is slightly too fast, the motherboard will warn of overload/overheating. In
      this case, you might need to use a series Schmitt trigger to amplify the I/O port drive current. There are ready-made modules available for purchase.
Reference link: https://item.taobao.com/item.htm?_u=p2jk0vj00078&id=674278495269&spm=a1z09.2.0.0.dc672e8dtWiszm
   . Select the common cathode type. Do not purchase modules that use MOSFETs for amplification; Schmitt trigger modules are recommended.
 
 
 
 
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