Q: New lathe machine with GSK 980 TDb CNC system, “I/O alarm: 254” and “Not Ready” appear as soon as turn on the power, how can we solve this?

A: This is Emergency Stop alarm, which means there is no High-level input signal on ESP, connect 4 limit switch and emergency stop switch in series, and give a 24V to the input will be ok.

GSK 980 TDb Specification and User Manual