Chuck Clamp
The Chuck Clamp output opens and closes a powered lathe chuck. It is interlocked with the spindle: the chuck cannot open while the spindle runs, and the spindle cannot start while the chuck is open.
Output logic
LOW = clamp closed
Controls
MDI buttons, external input
G-code
M10 clamp, M11 unclamp
WARNING
For safety, output LOW means the clamp is closed – do not invert the chuck clamp logic. Wire an interlock signal from the spindle drive so the clamp cannot open while the spindle or chuck is rotating.1. Controlling the chuck
and 
buttons2. Example wiring
3. Starting the spindle with the chuck open
If you try to start the spindle while the chuck is open, a warning appears. Press OK to clear it.
1
Close the chuck clamp.
2
Start the spindle manually.
3
If running a G-code program, press Cycle Start.
CAUTION
If a program runs with the chuck open, the spindle does not start but the program continues with the spindle off. This can damage the machine or the workpiece.
