ABB IRB 2600 Series, Product Manual, Page: 400 / 454

If one of the following mentioned axes are rotated one or more turns from its
calibration position before updating the revolution counter, the correct calibration
position will be lost due to non-integer gear ratio. This affects the following
manipulators:
Axis 6 Axis 4 Manipulator variant
No No IRB 2600
If the synchronization marks seem to be wrong (even if the motor calibration data
is correct), try to rotate the axis one turn, update the revolution counter and check
the synchronization marks again (try both directions, if needed).
Step 2 - Updating the revolution counter with the FlexPendant
Use this procedure to update the revolution counter with the FlexPendant (IRC5).
Action
On the ABB menu, tap Calibration .
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400 Product manual - IRB 2600
3HAC035504-001 Revision: Q
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5 Calibration
5.3 Updating revolution counters
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