User of GSK980TDC
GS2050Y-NP2-ZJY182-2.2BH-B35Y1-L
GS2030T-NP1-80SJT-M032E:

I have a lathe I converted a few years ago with
A gsk controller I purchase from CNCmakers See photos attached.
We did not use it for a few years, now when we try to run it, it starts, but spindle runs too slow.
After a few seconds we get alarm 435 on the monitor, The code on the driver is ER.R-27
Can you Help?

CNCmakers Support:
According to your description, please check below:

1- Check PA176 value of the driver with Err-27 code, PA176 is motor encoder pulses,
for X, Z axis GS2030T-NP1, it should be 5000
for spindle driver GS2050Y-NP2, it should be 1024

2- Check motor connection U V W, are they connected in correct sequency?

3- If above 2 are right, then the encoder of the motor could be broken.