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Reference Point Approach (R1)
18.4 Referencing with absolute encoders
Turning, Milling, Nibbling
328
Function Manual, 11/2012, 6FC5397-1CP10-5BA0
18.4
Referencing with absolute encoders
18.4.1
General
Requirements
An axis with absolute encoder is referenced automatically when the control is switched on if
the system detects that the relevant axis is already calibrated. This transfer of the absolute
value takes place without any axis motion, e.g. at POWER ON. Two conditions must be
fulfilled before an axis can be automatically referenced:
●
The axis has an absolute encoder with which the position control operates
●
The Absolute encoder has been calibrated (MD34210 ENC_REFP_STATE = 2)
Adjustment
In the case of axes with absolute encoders, the measurement system is not synchronized by
approaching a reference cam. It is calibrated instead. For this purpose, the actual value of
the absolute encoder is set once during start-up and transferred to the control.
18.4.2
Operator-assisted calibration
Basic procedure
Move the axis to be calibrated to a defined position to set the resulting actual value.
Chronological sequence
1.
Set MD34200 ENC_REFP_MODE and MD34210 ENC_REFP_STATE to 0 and activate
by means of a POWER ON. Parameter ENC_REFP_MODE = 0 means that the actual
value of the axis is set once.
2.
Traverse axis manually in JOG mode to a known position. The direction in which the
position is approached must match the direction stored in MD34010
REFP_CAM_DIR_IS_MINUS (0 = positive direction, 1 = negative direction).
Note
This known position must always be approached at a low velocity and from a defined
direction so that it is not falsified by any backlash present in the drive train.
Содержание SINUMERIK 802D sl
Страница 58: ...Axis Monitoring A3 2 6 Data lists Turning Milling Nibbling 58 Function Manual 11 2012 6FC5397 1CP10 5BA0 ...
Страница 84: ...Travel to fixed stop F1 5 6 Data lists Turning Milling Nibbling 84 Function Manual 11 2012 6FC5397 1CP10 5BA0 ...
Страница 114: ...Gantry axes G1 6 8 Data lists Turning Milling Nibbling 114 Function Manual 11 2012 6FC5397 1CP10 5BA0 ...
Страница 260: ...Measurement M5 13 6 Data lists Turning Milling Nibbling 260 Function Manual 11 2012 6FC5397 1CP10 5BA0 ...
Страница 314: ...Positioning Axes P2 17 3 Data lists Turning Milling Nibbling 314 Function Manual 11 2012 6FC5397 1CP10 5BA0 ...
Страница 332: ...Reference Point Approach R1 18 6 Data lists Turning Milling Nibbling 332 Function Manual 11 2012 6FC5397 1CP10 5BA0 ...
Страница 340: ...Rotary Axes R2 19 4 Data lists Turning Milling Nibbling 340 Function Manual 11 2012 6FC5397 1CP10 5BA0 ...
Страница 368: ...Spindle S1 20 9 Data lists Turning Milling Nibbling 368 Function Manual 11 2012 6FC5397 1CP10 5BA0 ...
Страница 390: ...Tangential Control T3 22 5 Data lists Turning Milling Nibbling 390 Function Manual 11 2012 6FC5397 1CP10 5BA0 ...
Страница 422: ...Feed V1 24 4 Data lists Turning Milling Nibbling 422 Function Manual 11 2012 6FC5397 1CP10 5BA0 ...
Страница 440: ...Appendix A 2 Overview Turning Milling Nibbling 440 Function Manual 11 2012 6FC5397 1CP10 5BA0 ...
Страница 458: ...Glossary Turning Milling Nibbling 458 Function Manual 11 2012 6FC5397 1CP10 5BA0 ...