5238-E P-327
SECTION 14 OTHER FUNCTIONS
5.
SPINDLE SPEED VARIATION CONTROL FUNCTION
5-1.
Outline
The spindle speed variation control function changes the spindle speed periodically to prevent
chattering generated during machining of a thin-wall and large-diameter workpiece.
5-2.
Method of Spindle Speed Variation Control
5-2-1. Spindle Speed Variation
Since chattering may occur during cutting of thin and large-diameter workpieces or the like, this
function prevents chattering during cutting by varying the spindle speed according to the cycle,
amplitude data, and interval timer predetermined in relation to the commanded speed.
LE33013R0301600090001
5-3.
Control Specifications
5-3-1. M Codes
Spindle speed variation control is turned on or off using the following M code commands.
M695: Spindle speed variation control ON
M694: Spindle speed variation control OFF
[Supplement]
•
These M code commands are modal commands. Once an M695 command is specified, the
M695 command is effective until an M694 command is specified.
•
When the power supply is turned on or after the system is reset, these M codes get into the
state of M694.