
2.MECHANICAL DESIGN HANDLING, DESIGN, AND ASSEMBLY B-65382EN/02
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- Example using the HEIDENHAIN 's absolute linear encoder LC192F or LC491F
N S N S N S N S N S
Coil slider
L
Power line
or terminal
S
Absolute linear encoder
LC191F, LC491F
Mount a linear motor and linear encoder at the following position in
the figure above:
Magnet end face on the power line
(terminal) side
L (mm) M: Natural number
N pole L=60×M+27±0.5 (mm)
S pole L=60×M+57±0.5 (mm)
Encoder model S (mm) M: Natural number
LC192F S=60×N-1.5
Without mounting spur S=60×N-3.5
LC491F
With mounting spur S=60
×N-20
CAUTION
1 Before mounting a linear encoder, check that the positive
direction of the linear motor matches the positive direction
of the linear encoder. If a positive direction mismatch
exists, the motor can become uncontrollable in the worst
case. For the method of checking, see Subsection 2.4.2,
"Linear Motor and Linear Encoder Directions".
2 If a linear encoder is mounted at an incorrect position, the
power factor can drop, and a soft thermal (OVC) alarm
can be issued. In addition, the motor can become
uncontrollable in the worst case. Before turning on the
power to the machine after machine assembly, recheck
the positional relationships.
NOTE
1 Note that the measurement length ML start point of
LC192F and LC491F differs from the origin of the
encoder.
2 For details of the linear encoders LC192F and LC491F,
contact HEIDENHAIN, or their sales representative.