Parameters Of The Programmable Compensation Vector - Siemens SINUMERIK 840D sl Function Manual

Analog input
The following machine data must be parameterized for the analog input:
● MD10300 $MN_FASTIO_ANA_NUM_INPUTS (number of active analog NCK inputs)
● MD10362 $MN_HW_ASSIGN_ANA_FASTIN (per analog module) (hardware assignment
for the fast analog NCK inputs)
Specifying the physical address activates the analog input module
Digital input
The following machine data must be parameterized for the digital input:
● MD10350 $MN_FASTIO_DIG_NUM_INPUTS (number of active digital NCK input bytes)
● MD10366 $MN_HW_ASSIGN_DIG_FASTIN (per digital module) (hardware assignment for
the external digital NCK inputs)
Specifying the physical address activates the digital input module.
A complete description of the analog and digital inputs appears in:
References:
Function Manual, Extended Functions, Digital and Analog NCK I/Os (A4)
15.5.4

Parameters of the programmable compensation vector

Reference coordinate system
The programmable compensation vector specifies the direction in which the compensation
movement of the clearance control takes place. The compensation vector always refers to the
basic coordinate system (machine coordinate system).
The start coordinates [Xa, Ya, Za] of the compensation vector coincide with the origin of the
basic coordinate system and are thus always [0, 0, 0].
The end coordinates [Xe, Ye, Ze] of the compensation vector are determined by the actual
positions of 3 channel axes, known as the direction axes.
Direction axes
The direction axes must meet the following conditions:
1. The direction axes must be channel axes of the channel in which the clearance control is
activated.
2. The direction axes must be linear axes.
Note:
Since the direction axes are only used to interpolate the direction components, they do not
need mechanical axes and can therefore be configured as simulation axes.
3. [mm] or [inch] must be selected as the unit of measurement for the direction axes.
Special functions
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
TE1: Clearance control - 840D sl only
15.5 Startup
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