
B-63323EN-1/03 4.REFERENCE POSITION ESTABLISHMENT
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Caution
CAUTION
1 In the following cases, the operation for establishing a reference position is not
performed, but movement to the reference position occurs:
- If axial movement is made in REF mode after the reference position is established
- If an automatic reference position return (G28) is specified after the reference
position is established
2 Because the axial movement continues until three or four reference marks are
detected, start the operation for establishing a reference position from a position
sufficiently distant from a scale end. If the operation starts from a position close to a
scale end, the axial movement will not stop until an overtravel is detected.2
Scale end
Reference mark
Start point (not recommended)
Start point (recommended)