
B-65382EN/02 HANDLING, DESIGN, AND ASSEMBLY 2.MECHANICAL DESIGN
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NOTE
With the FANUC Linear Motor LiS series, an
incremental linear encoder that outputs the
reference mark signal (Z-phase signal) at one
position only is required. Specify this requirement
when ordering an incremental linear encoder. If an
incremental linear encoder has two positions where
the reference mark signal is output, a count miss
alarm may be issued when the second reference
mark signal is detected.
For LiS 1500B1 and LiS 3300C1
For the LiS 1500B1/4 and LiS 3300C1/2, the magnetic pole sensor
cannot be directly attached to the coil slider. For this purpose, the
positional relationship for mounting the linear encoder and the
magnetic pole sensor is predetermined.
Linear encoder
Position where the reference mark
signal (reference signal) is output
Magnetic pole sensor
Datum plane
Magnified view of the
pole sensor
Magnet plate
Coil slider end
face on the power
terminal side
Mount a linear motor, magnetic pole sensor, and linear encoder at the
following position in the figure above where the linear encoder
outputs the reference mark signal:
P = 60 × N (mm) N: Natural number
Magnet end face on the magnetic
pole sensor side
L (mm) M: Natural number
N pole L=60×M+27±0.5 (mm)
S pole L=60×M+57±0.5 (mm)