Siemens SINAMICS G120 - Page 67

4. Select the digital input with which reference cam 2 is interconnected.
Several reference points:
If you require several reference points for an axis, then you must do the following:
– Assign the corresponding digital input to the respective reference point.
– Change the reference point coordinate during operation, e.g. using the non-cyclic
communication of the 󹪝eldbus.
5. Set the inner window for referencing. You deactivate the inner window with the value 0.
6. Set the outer window for referencing. You deactivate the outer window with the value 0.
Referencing can be suppressed depending on the deviation of the actual position value:
Inner window: For excessively small deviations, the converter does not correct its position
actual value.
Outer window: The converter signals an excessive deviation, but does not correct its position
actual value.
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Figure 6-13 Outer and inner window for 󹪞ying referencing
7. Specify the following:
– Taking into account the o󹪜set in traversing distance: The converter corrects both the
actual position as well as the setpoint. The relative traversing distance is shorter or longer
by the value of the correction.
Example: 500 LU is the axis start position. The axis should travel relatively through
1000 LU. The converter corrects the reference point during travel by 2 LU, and travels to
the corrected target position 1498 LU.
– Not taking into account the correction in the traversing distance: The converter corrects
both the actual position as well as the setpoint. The relative travel distance remains
unchanged.
Example: 500 LU is the axis start position. The axis should travel relatively through
1000 LU. The converter corrects the reference point during travel by 2 LU, however,
moves to the old target position 1500 LU.
8. Set the reference point coordinate p2599 via the parameter view in Startdrive.
9. Close the screen form.
You have set 󹪞ying referencing.
❒
Commissioning
6.6 Referencing
Basic positioner
Function Manual, 09/2020, FW V4.7 SP13, A5E34257659B AG 65