Heidenhain Error Codes Now

Then the master code appeared — the one that means “stop guessing, call the service engineer”:

The TNC 640 screen flickered — not the warm hum of a healthy contour, but a cold, amber glow. heidenhain error codes

“The axis tried to move where the glass didn’t see.” Then the master code appeared — the one

That’s the machine going blind. The glass scale — etched with micron-perfect graduations — had fogged, or cracked, or simply given up. but a cold

No, I didn’t press stop.

The Z-axis thought it was at +12.000 mm. The dial indicator said -0.400.