M11 – Chuck Or Rotary Table Clamp Open
This command sets the Chuck Clamp output to HIGH.
In MASSO logic, this means the Chuck Clamp is open.
Syntax & Parameters
M11
Example Program
N10 M11
Opens the Chuck Clamp
If you attempt to start the spindle while the Chuck Clamp is open, a warning message will be displayed.
Pressing OK will clear the message.

To continue, close the Chuck Clamp and manually start the spindle before pressing Cycle Start when running a G-code program.
The Chuck Clamp can also be opened and closed from the MDI screen using the
and the
buttons.
An external Chuck Clamp / Unclamp input can be assigned to toggle the clamp open or closed as required.
These controls are interlocked with the spindle status and will:
Prevent the Chuck Clamp from opening while the spindle is running
Prevent the spindle from starting while the Chuck Clamp is open

Example Chuck Clamp wiring
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