Siemens SINUMERIK 802D sl, Руководство по эксплуатации функций, Страница: 118 / 462

Velocities, Setpoint/Actual Value Systems, Closed-Loop Control (G2)
7.2 Metric/inch measuring system
Turning, Milling, Nibbling
118
Function Manual, 11/2012, 6FC5397-1CP10-5BA0
7.1.4 Standardizing physical quantities of machine and setting data
Machine and setting data that possess a physical quantity are interpreted in the input/output
units below depending on whether the metric or inch system is selected:
Input/output units for standard basic system: Physical quantity:
Metric Inch
Linear position 1 mm 1 inch
Angular position 1 degrees 1 degrees
Linear velocity 1 mm/min. 1 inch/min.
Angular velocity 1 rpm 1 rpm
Linear acceleration 1 m/s
2
1 inch/s
2
Angular acceleration 1 rev/s
2
1 rev/s
2
Linear jerk 1 m/s
3
1 inch/s
3
Angular jerk 1 rev/s
3
1 rev/s
3
Time 1 s 1 s
Position controller servo gain 1/s 1/s
Rev. feedrate 1 mm/rev 1 inch/rev
Compensation value linear position 1 mm 1 inch
Compensation value angular position 1 degree 1 degree
7.2 Metric/inch measuring system
The control system can operate with the inch or the metric measurement system. The initial
state is defined via MD10240 SCALING_SYSTEM_IS_METRIC (metric basic system).
Depending on the setting in the MD, all geometric values are interpreted either as metric or
inch values. All manual settings also refer to this basic setting (e.g. handwheel, INC, JOG
feedrate), as do zero offsets, tool offsets, etc. and the associated displays.
Switching over the measuring system is simplified considerably by setting MD10260
CONVERT_SCALING_SYSTEM=1:
●
Availability of an MMC softkey to change the dimension system.
● Automatic conversion of NC active data when the dimension system is changed-over.
● Data backup is performed with the actual measuring system identifier.