Siemens Sinumerik 840DiE sl - Normalization of Physical Quantities of Machine and Setting Data

01/2007
11.3 System data
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© Siemens AG 2007 All Rights Reserved
SINUMERIK 840Di sl Manual (HBIsl) – 01/2007 Edition
11.3.2 Normalization of physical quantities of machine and setting data
Machine and setting data having a physical unit are interpreted in the input/
output units listed in Table 11-6 by default, depending on the scaling system
(metric/inch).
The internally used units which the NCK uses are independent and fixed.
Table 11-6 Normalization of phys. units of machine data and setting data
Physical unit
Input/output units for the
default scaling system
Internally used
Unit
Metric Inch
Linear position 1 mm 1 inch 1 mm
Angular position 1 degrees 1 degrees 1 degrees
Linear velocity 1 mm/min 1 inch/min 1 mm/s
Angular velocity 1 rpm 1 rpm 1 deg./s
Linear acceleration 1 m/s
2
1 inch/s
2
1 mm/s
2
Angular acceleration 1 rev/s
2
1 rev/s
2
1 degree/s
2
Linear jerk 1 m/s
3
1 inch/s
3
1 mm/s
3
Angular jerk 1 rev/s
3
1 rev/s
3
1 degree/s
3
Time 1 s 1 s 1 s
Position controller servo gain 1 s
–1
1 s
–1
1 s
–1
Rev. feedrate 1 mm/rev 1 inch/rev 1 mm/degree
Compensation value linear position 1 mm 1 inch 1 mm
Compensation value angular position 1 degrees 1 degrees 1 degrees
The user can define different input/output units for machine and setting data.
For this purpose,
S MD 10220: SCALING_USER_DEF_MASK (activation of scaling factors) and
S MD 10230: SCALING_FACTORS_USER_DEF[n] (scaling factors of the
physical quantities)
allow you to set the adaptation between the newly selected input/output units
and the internal units.
Input values for machine data
Internal physical unit
MD 10230 Scaling factor
MD 10220
Scaling factor
activated?
Internal scaling
No
Yes
Default
User–defined
11 NCK Commissionin
g
with HMI Advanced