Detailed description
2.2 Metric /inch measuring system
Basic logic functions: Velocities, Setpoint/Actual Value Systems, Closed-Loop Control (G2)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
19
2.2
Metric/inch measuring system
2.2.1
General
The control system can operate with the inch or the metric system of measurement.
Initial state
The initial state is defined via the following machine data element:
MD10240 $MN_SCALING_SYSTEM_IS_METRIC (basic metric 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 initial state (e.g., handwheel, INC, JOG feedrate), as do
zero offsets, tool offsets, FRAMES, etc., and the associated displays.
Supplements
The setting:
MD10260 $MN_CONVERT_SCALING_SYSTEM=1
greatly simplifies a change in the measuring system.
•
HMI user interface: Softkey in the "Machine" operating area for changing the measuring
system.
•
Automatic conversion of active NC data when the measuring system is changed.
•
Data backup is performed with the actual measuring system identifier.
•
The measuring system for sag compensation is configured in machine data element:
MD32711 $MA_CEC_SCALING_SYSTEM_METRIC
References:
/FB2/ Function manual, Extended Functions; Compensations (K3)
•
The measuring system for positional data of the indexing axis tables and switching points
for software cams is configured in machine data element:
MD10270 $MN_POS_TAB_SCALING_SYSTEM.
References:
/FB2/ Function Manual, Extended Functions; Software Cams, Limit Switching Signals
(N3)/Indexing Axes (T1)
Summary of Contents for SINUMERIK 840D sl
Page 282: ...Index Basic logic functions Acceleration B2 64 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 388: ...Basic logic functions Travel to fixed stop F1 Function Manual 11 2006 6FC5397 0BP10 2BA0 52 ...
Page 962: ...Index Basic logic functions Emergency Stop N2 20 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1704: ...Constraints Basic logic functions Spindles S1 94 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1716: ...Index Basic logic functions Spindles S1 106 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1996: ...Index Basic logic functions Tool Offset W1 208 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2150: ...Table of contents Basic logic functions Appendix 4 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2184: ...Glossary Basic logic functions Appendix 38 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...