4. FEED FUNCTIONS
B–63682EN/01
NC FUNCTION
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For rapid traverse, the rapid traverse feedrates, time constants, and servo
loop gains can be switched according to the positioning distance set up
by a parameter for each axis. Use of this function can improve positioning
accuracy.
X– and Y–axes : Rapid traverse feedrates, time constants, and/or
servo loop gains are switched according to the
positioning distance (up to 7 steps).
Servo loop gains for rapid traverse and cutting
feed are switched
T–axis : Rapid traverse time constant and servo loop gains
are switched according to the positioning angle
(up to 3 steps).
C–axis : Rapid traverse feedrates and time constants are
switched according to the positioning angle (up to
3 steps).
For automatic rapid traverse, positioning along the X– and Y–axes can be
performed exactly in the specified time regardless of the positioning
distance. Use of this function for nibbling can smooth punching
regardless of what the nibbling pitch is, because positioning can be done
exactly in the constant time. (2 steps)
4.4.1
Switching Rapid
Traverse Feedrates,
Time Constants, and/or
Servo Loop Gains
According to the
Positioning Distance
4.4.2
Constant–positioning–
time Control