
B-63783EN-1/01 14.PMC CONTROL FUNCTION
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14.1 PMC AXIS CONTROL
General
The PMC can directly control any given axis, independently of the
CNC. In other words, moving the tool along axes that are not
controlled by the CNC is possible by entering commands, such as those
specifying moving distance and feedrate, from the PMC. This enables
the control of turrets, pallets, index tables and other peripheral devices
using any given axes of the CNC.
Whether the CNC or PMC controls an axis is determined by the input
signal provided for that particular axis.
The PMC can directly control the following operations:
(1) Rapid traverse with moving distance specified
(2) Cutting feed - feed per minute, with moving distance specified
(3) Cutting feed – sec/block specification, with moving distance
specified
(4) Dwell
(5) Reference position return
(6) Feedrate control
(7) Auxiliary function
(8) Selection of the machine coordinate system
(9) Torque control
(10) Cutting feed - feed per revolution, with moving distance specified
(11) Skip - feed per minute, with moving distance specified
(12) Continuous feed
(13) 1st. reference position return
(14) 2nd. reference position return
(15) 3rd. reference position return
(16) 4th. reference position return
(17) External pulse synchronization (spindle)
For cutting feed with an amount of travel specified, as described in (2),
(3) and (10), the following are possible:
- Specification of the feedrate and override
- Simultaneous start of cutting feed on multiple PMC control axes
CNC
BMI
First axis
PMC axis
control data
Second axis
PMC axis
control data
Third axis
PMC axis
control data
....
PMC
Command
First axis control
Pulse
Servo control
Motor
Second axis Pulse Servo control
Motor
Third axis Pulse Servo control
Motor
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