Q: The spindle motor runs but there is no speed shown on the CNC screen, there is spindle encoder, G99 and G92 could not be used, all parameters is fine, what’s wrong?

A: It looks like no signal coming from the spindle encoder, please check.

Spindle motor specification:

http://www.cncmakers.com/cnc/controllers/Spindle_Motor_Driver/ZJY208_ZJY265_Spindle_Motors.html