HEIDENHAIN MANUALplus 620 Technical Manual page 763

January 2012
In parameter MP_parAxComp you define the default setting for the treatment
of parallel axes. The machine operator can overwrite this setting in the NC
program. After startup, however, the given default configuration always
becomes effective.
Possible settings:
MP_parAxComp = off:
Compensation and display function is deactivated for parallel axes.
Example: If a secondary (parallel) axis W is moved, the Z axis does not
compensate the movement. The position display does not show the value
of the W axis. HEIDENHAIN recommends that you avoid using this setting
for machines with parallel axes.
MP_parAxComp = Display:
Display function for parallel axes is active.
Example: Movements of a secondary (parallel) axis W are added in the
position display to the corresponding principal axis (in this case Z) (sum
display). The position display therefore always shows the relative distance
from the tool to the workpiece—regardless of whether the principal or
secondary axis is moved.
MP_parAxComp = Move
Compensation for parallel axes is active. The MANUALplus 620
compensates the movement of parallel axes through compensating
movements in the corresponding principle axis.
For example, if a parallel-axis movement is performed in the negative W-axis
direction, the principal axis Z is moved simultaneously in the positive
direction by the same value. The relative distance from the tool to the
workpiece therefore remains the same.
Application in gantry-type milling machine: Retract the spindle sleeve to
move the cross beam down simultaneously.
MP_parAxComp
Compensation of parallel linear axes
Available from NCK software version: 597 110-04.
Format: Selection menu
Selection: Off
Compensation and display function is deactivated for parallel
axes.
Display
Display function for parallel secondary axes is active.
Move
Compensation for parallel axes is active.
Default: No value, parameter optional (= off)
Access: LEVEL3
Reaction: RESET
6.13 Parallel Axes 763