VMI VVS OL82 - Page 93

Word Parameter Dimension
13 Spare
14 Calibration length 0.1 mm
6.2.3.1 Offset
Offset LE and Offset Body shift the center line to the right (positive value) or to the left
(negative value).
NOTICE
Left / right is determined by the flow of the material.
6.2.3.2 Width and width tolerances
Tread width + Tread outer tolerance = maximum allowed tread width.
Tread width – Tread inner tolerance = minimum allowed tread width.
The measured material width is the running average over 21 samples and compared to the
specified material width.
When the measured material width is outside the tolerance, an error message is given.
6.2.3.3 Calibration length
The Calibration length is a calibrated movement of the conveyor, set by the PLC during
calibration of the encoder for length measurement.
Encoder pulses are counted during conveyor movement over a length set by calibration
length. From this the 'counts per meter' is calculated.
For more information, refer to the paragraph Encoder calibration on page 5
‑ 23.
PARAMETERS
Parameter buffer
6
THINKING FORWARD
VMI Vision System VVS (OL82) VVSX 13.0.12.0, VVSU 3.0.6 / 4 / 2016-07-11 / pd#175592
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