
PROGRAMMING5. FEED FUNCTIONS
B–64154EN/01
52
WARNING
Cutting feed is invalid for the turret axis (T–axis) and C–axis.
T–axis and C–axis commands, therefore, cannot be
specified in linear interpolation (G01) mode and circular
interpolation (G02, G03) mode.
However, when the parameter CIP (No.16360#5) is set to
1, C–axis can be specified.
A common upper limit can be set on the cutting feedrate along each axis
with parameter No. 1422. If an actual cutting feedrate (with an override
applied) exceeds a specified upper limit, it is clamped to the upper limit.
Parameter No. 1430 can be used to specify the maximum cutting feedrate
for each axis only for linear interpolation and circular interpolation.
When the cutting feedrate along an axis exceeds the maximum feedrate
for the axis as a result of interpolation, the cutting feedrate is clamped to
the maximum feedrate.
NOTE
An upper limit is set in mm/min or inch/min. CNC calculation
may involve a feedrate error of ±2% with respect to a
specified value. However, this is not true for
acceleration/deceleration. To be more specific, this error is
calculated with respect to a measurement on the time the
tool takes to move 500 mm or more during the steady state:
D Cutting feedrate clamp