
B-65222EN/03 HANDLING, DESIGN, AND ASSEMBLY 2.MECHANICAL DESIGN
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NOTE
With the FANUC Linear Motor 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.
1500A/4 or models of larger sizes
To use an incremental linear encoder, a magnetic pole sensor is
required. Mount a magnetic pole sensor with screws of M6×15 mm in
the concave on the power lead or terminal side of the coil slider. At
this time, ensure that the bottom surface (facing the magnet plate) of
the magnetic pole sensor is flush with the bottom surface (facing the
magnet plate) of the coil slider.
NOTE
If the bottom surface of the magnetic pole sensor is
projected relative to the bottom surface of the coil
slider, the magnetic pole sensor can rub against the
magnet plate.
When a linear motor with a magnetic pole sensor, and an incremental
linear encoder are mounted, their predetermined positional
relationships need to be observed.
N S N S N S N S N S
Linear encoder
Position where the reference mark signal
(reference signal) is output
Coil slider
L
Magnetic pole sensor
Power line o
terminal
Mount a linear motor and linear encoder at the following position in
the figure above where the linear encoder outputs the reference mark
signal (reference signal):
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)