10/23/2026
Encoder errors from the Z axis on boot-up turned out to be a major crash. The machine is a CTX Beta 800, built in 2009.
Opening the machine showed the Z-axis ballscrew pushed inside the Z-axis motor. The motor was trashed.
The ballscrew had to be cut in half to get the parts out. New parts were ordered and installed.
What does your shop check first on an encoder alarm?