Normalization Of Phys. Units Of Machine Data And Setting Data - Siemens SINUMERIK 840D sl Commissioning Manual

10.2.2

Normalization of phys. units of machine data and setting data

Standard
Machine and setting data having a physical unit are interpreted in the input/output units listed
in the table "Scaling physical units of machine and setting data" by default, depending on the
scaling system (metric/inch).
The internally used units which the NC uses are independent and fixed.
Table 10-2 Normalization of phys. units of machine data and setting data
Physical unit
Linear position
Angular position
Linear velocity
Angular velocity
Linear acceleration
Angular acceleration
Linear jerk
Angular jerk
Time
Position controller servo gain
Rev. feedrate
Compensation value linear position
Compensation value angular position
User-defined
The user can define different input/output units for machine and setting data.
For this purpose,
● MD10220 SCALING_USER_DEF_MASK (activation of scaling factors) and
● MD10230 SCALING_FACTORS_USER_DEF[n] (scaling factors of the physical
allow you to set the adaptation between the newly selected input/output units and the
internal units.
IBN CNC: NCK, PLC, drive
Commissioning Manual, 07/2007, 6FC5397-2AP10-3BA0
Input/output units for the standard basic system
Metric
1 mm
1 degree
1 mm/min
1 rpm
1 m/s
2
1 rev/s
2
1 m/s
3
1 rev/s
3
1 sec
1 s
-1
1 mm/rev
1 mm
1 degree
quantities)
Inch
1 inch
1 degree
1 inch/min
1 rpm
1 inch/s
2
1 rev/s
2
1 inch/s
3
1 rev/s
3
1 sec
1 s
-1
1 inch/rev
1 inch
1 degree
NCK start-up
10.2 System data
Internally used unit
1 mm
1 degree
1 mm/s
1 deg./s
1 mm/s
2
1 degree/s
2
1 mm/s
3
1 degree/s
3
1 sec
1 s
-1
1 mm/degree
1 mm
1 degree
105