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Chapter 10 Electronic Gearing and Camming
© National Instruments Corporation 10-17 NI-Motion User Manual
Master Offset
If the material and welding point are not initially aligned, as shown in
Figure 10-16, the master offset must be applied to consider the position
difference.
Figure 10-16. Misaligned Material and Welding Point
Without the master offset, the master device position is already inside the
first interval as soon as the first material passes the welding point.
Figure 10-16 shows that the master cycle intervals are offset by 50 counts.
The master interval is shifted from 0, 2,000, 4,000, and 6,000 to 50, 2,050,
4,050, and 6,050.
Position = 50
Position = 0
When there is no master offset,
the master cycle begins at
position 0.