
B-63322EN/03 NC FUNCTIONS 5.FEED FUNCTION
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5.5 PMC AXIS CONTROL CONSTANT FEEDRATE COMMAND
ACCELERATION/DECELERATION FUNCTION
When a constant feedrate is specified with the PMC axis control function,
linear acceleration/deceleration can be applied to the specified feedrate
at the start and end of movement.
As a result, smooth start and stop is possible. Moreover, when the
feedrate changes during movement, acceleration/deceleration is applied
automatically, so that the feedrate changes smoothly.
Fig. 5.5 When a Constant-Feedrate Command is Specified
PMC
Motor
CNCBMI
Servo control
Acceleration/dece
leration control
Constant
feedrate
Axis management (rotation
axis)