
2.MECHANICAL DESIGN HANDLING, DESIGN, AND ASSEMBLY B-65382EN/02
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- When the magnet plate is movable
Positive
direction
Slider fixed
Power line
Magnet plate movable
Positive direction of a linear encoder
The positive direction of a linear encoder is the direction in which the
encoder counts up. The positive direction of a linear encoder depends
on the manufacturer and model. For details, refer to the specifications
of a linear encoder used. Examples of positive direction are described
below using the HEIDENHAIN's absolute linear encoder LC192F and
the Mitutoyo's absolute linear encoder AT353.
NOTE
The examples described below are based on the
linear encoder specifications that are available to
FANUC as of the publication of this manual. The
information below is subject to change if the
specifications of the linear encoders are updated.
For the latest information, contact relevant encoder
manufacturer.
- HEIDENHAIN's absolute linear encoder LC192F (with the head movable)
The direction opposite to the "HEIDENHAIN" mark provided on the
side of the linear encoder unit represents the positive direction.
Main linear encoder unit fixed
Head
movable
Positive direction
- HEIDENHAIN's absolute linear encoder LC192F (with the main linear encoder unit
movable)
The direction toward the "HEIDENHAIN" mark provided on the side
of the linear encoder unit represents the positive direction.
Main linear encoder unit movable
Head fixed
Positive direction
NOTE
For the LC491F, the "HEIDENHAIN" mark is
provided on the top of the unit.