Siemens SINUMERIK 840D sl, Function Manual

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Basic logic functions: Reference Point Approach (R1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
3
Table of contents
1 Brief Description ........................................................................................................................................ 5
2 Detailed description ................................................................................................................................... 7
2.1
Axisspecific referencing .................................................................................................................7
2.2 Channelspecific referencing...........................................................................................................9
2.3 Reference point appraoch from part program (G74) ...................................................................11
2.4 Referencing with incremental measurement systems .................................................................12
2.4.1 Chronological sequence ..............................................................................................................12
2.4.2 Phase 1: Traversing to the reference cam...................................................................................13
2.4.3 Phase 2: Synchronization with the zero mark..............................................................................15
2.4.4 Phase 3: Traversing to the reference point..................................................................................21
2.4.5 Buffered actual value ...................................................................................................................24
2.5 Referencing with distancecoded reference marks.......................................................................26
2.5.1 General overview .........................................................................................................................26
2.5.2 Basic parameter assignment .......................................................................................................26
2.5.3 Chronological sequence ..............................................................................................................29
2.5.4 Phase 1: Travel across the reference marks with synchronization .............................................30
2.5.5 Phase 2: Travel to fixed stop .......................................................................................................31
2.6 Referencing with absolute value encoders ..................................................................................34
2.6.1 Information about calibration........................................................................................................34
2.6.2 Calibration by entering a reference point offset...........................................................................36
2.6.3 Adjustment by entering a reference point value ..........................................................................37
2.6.4 Automatic calibration with probe..................................................................................................39
2.6.5 Calibration with BERO .................................................................................................................41
2.6.6 Reference point approach with absolute encoders .....................................................................43
2.6.7 Automatic encoder replacement detection ..................................................................................43
2.6.8 Enabling the measurement system .............................................................................................45
2.6.9 Referencing variants that are not supported................................................................................46
2.7 Referencing by means of actual value adjustment......................................................................47
2.7.1 Actual value adjustment to the referencing measurement system..............................................47
2.7.2 Actual value adjustment to the referenced measurement system...............................................48
2.7.3 Actual value adjustment for measuring systems with distance-coded reference marks .............49
2.8 Referencing in followup mode......................................................................................................50
2.9 Zero mark selection with BERO...................................................................................................54
3 Supplementary conditions ....................................................................................................................... 55
3.1
Large traverse range....................................................................................................................55
4 Examples................................................................................................................................................. 57