6 Pro
rammin
the control
6
03/2006
6.9 Axes and spindles
6-91
© Siemens AG 2006 All Rights Reserved
SINUMERIK 840D/810D Start-Up Guide (IADC) – 03/2006 Edition
Table 6-17 Machine data for adapting encodersfor linear measuring systems
Machine data Linear axis
MD 30300: IS_ROT_AX 0
MD 31000: ENC_IS_LINEAR 0
MD 31030: LEADSCREW_PITCH mm/rev
MD 31040: ENC_IS_DIRECT Encoder on motor: 0
Encoder on the machine: 1
MD 31010: ENC_GRID_POINT_DIST Graduation
MD 32110: ENC_FEEDBACK_POL Sign for actual value (control direction)
[1; –1]
MD 31060: DRIVE_AX_RATIO_NUMERA Motor revolution
MD 31050: DRIVE_AX_RATIO_DENOM Spindle revolution
M
IS_ROT_AX=0
Leadscrew
Load gearbox
Machine table
Linear scale
ENC_IS_LINEAR=1
ENC_IS_DIRECT=1
ENC_GRID_POINT_DIST (for linear encoder)
ENC_FEEDBACK_POL= [1 or -1]
DRIVE_AX_RATIO_NUMERA No. of motor rev.
DRIVE_AX_RATIO_DENOM
=
No. of spindle rev.
LEADSCREW_PITCH
Fig. 6-12 Linear axis with linear scale
Linear axis with
linear scale
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