696 HEIDENHAIN Technical Manual MANUALplus 620
Module 9124 Feed rate override for PLC axis
The override value set in this module influences the traversing speed of an axis
traversed by the PLC with Module 9120 or 9123.
Constraints:
The axis must not be in an interpolation context.
The override value is transferred as integral number (0 to 10000), which may
be in the range from 0 % to 100.00 % (resolution 0.01 %).
The last transmitted override value is accounted for at the beginning of
movement.
After a reset or interruption of the PLC program the override value is set to
100.00 %.
The override value can be changed during positioning.
The module can be called in addition to a module from the group (9120/
9121/9123) during the same PLC scan.
An axis that is not configured as "active", or an axis that was set to the
"deactivated axis" activation status (e.g. with Module 9226 or 9418), is
treated as if it were not present.
Call:
PS B/W/D/K <>Axis>
Index from CfgAxes/axisList
PS B/W/D/K <>Override>
Input unit: 0 to 10 000, corresponds to 0 to 100 % in 0.01 %
steps.
CM 9124
PL B/W/D <>Error code>
0: No error, override value was set
1: Axis does not exist
2: Not a PLC axis
3: Override value incorrect
Positioning of axes
by PLC
You start a PLC positioning movement with Module 9221, and you can
interrogate the status with Module 9222.
The following conditions apply to a PLC positioning command:
Tool compensation is not included. Before a PLC positioning command you
must end any tool compensation.
A PLC positioning movement is not displayed in the test graphic.
The NC cancels a PLC positioning movement under the following conditions:
If in the Manual or Handwheel modes there is an NC STOP.
If in the automatic operating modes there is an NC STOP and "internal stop."
If there is an EMERGENCY STOP.
If there is an error message that results in a STOP.
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