Q: Why the GSK 928TEa could not move the Z axis? The coordinate of Z axis had changed on CNC system, but actually the Z axis is not moving.

A: The Z axis might not receiving the signal from the CNC control, or there is signal but the driver is not enable.

GSK928TEa Specification:

http://www.cncmakers.com/cnc/controllers/CNC_Controllers_for_Lathes/GSK928TEa.html