
4.REFERENCE POSITION ESTABLISHMENT B-63943EN-1/02
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CAUTION
1 When the Linear scale with distance-coded
reference marks (serial) is used, please set
parameter SDCx No.1818#3 to 1.
2 And distance coded rotary encoder (serial type) is
not available.
3 On the Linear scale with distance-coded reference
marks (serial), the axis does not stop until three
reference marks are detected. If this procedure is
started at the position near the scale end, CNC can
not detect three reference marks and the axis does
not stop until over travel alarm occurs. Please care
to start at the position that has enough distance
from scale end.
And if establishment of reference position is failed,
the establishment is retried. Then axis does not
stop until still more three reference marks are
detected. So please set the maximum move
amount (detection unit : parameter No.14010) not
to reach the scale end.
Scale end
Reference marks
Start point (Bad) Start point (Good)
4 On flexible synchronization control mode,
reference position can't be established.
5 Straightness compensation function
When the reference point establishment of moving
axis is executed after the establishment of
compensation axis, the compensation axis is
moved by straightness compensation amount
when the reference point of moving axis is
established.
6 It is not available to use this function and the
temporary absolute coordinate setting together.