Siemens SINUMERIK FM-NC Installation And Startup Manual page 120

6 Assigning Parameters to the Control and the PLC Program
6.9 Axes and spindles
Matching encoders
with linear
measuring
systems
Linear axis with
linear scale
6-120
The following table lists all the data you need to enter for linear measuring
systems.
Table 6-12 Machine data for encoder matching with linear measuring systems
Machine data
MD 30300: IS_ROT_AX
MD 31000: ENC_IS_LINEAR
MD 31030: LEADSCREW_PITCH
MD 31040: ENC_IS_DIRECT
MD 31010: ENC_GRID_POINT_DIST
MD 32110: ENC_FEEDBACK_POL
MD 31060: DRIVE_AX_RATIO_NUMERA
MD 31050: DRIVE_AX_RATIO_DENOM
DRIVE_AX_RATIO_NUMERA
DRIVE_AX_RATIO_DENOM
Í Í Í Í Í Í
M
Í Í Í Í Í Í
Load gearing
Fig. 6-13 Linear axis with linear scale
SINUMERIK 840D Installation and Start-Up Guide (IAD) – 04.00 Edition
0
0
mm/rev
Encoder mounted on motor: 0
Encoder mounted on machine: 1
Scale graduations
Actual value sign (feedback
polarity)
[1; -1]
Motor revolution
Spindle revolution
No. of motor rev.
=
No. of spindle rev.
IS_ROT_AX=0
Table
Leadscrew
Linear scale
ENC_IS_LINEAR=1
ENC_IS_DIRECT=1
ENC_GRID_POINT_DIST (for linear encoder)
ENC_FEEDBACK_POL= [1 or -1]
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03.96
Linear axis
LEADSCREW_PITCH