
B-65382EN/02 HANDLING, DESIGN, AND ASSEMBLY 2.MECHANICAL DESIGN
- 129 -
2.5 ACTIVE FORCE AREA OF THE LINEAR MOTOR
The coil slider of the FANUC LINEAR MOTOR L
iS series has an
area (active force area) in which a thrust force is effectively generated.
To satisfy the specifications of the linear motor, the active force area
must face the magnet plate.
When using the absolute linear encoder, the coil slider overhangs the
magnet plate. However, the stroke can be increased by the distance
equal to (LS - LA).
For the incremental linear encoder, the stroke cannot be increased
since the magnetic pole detector is mounted on the end face of the coil
slider.
The active force area almost matches an area where magnetic
attraction is exerted.
LiS 300A1/4, LiS 600A1/4, and LiS 900A1/4
Model name LS × WS for coil slider LA × WA for active force area
LiS 300A1/4
73 × 71 71 × 50
LiS 600A1/4
133 × 71 131 × 50
LiS 900A1/4
193 × 71 191 × 50
Active force area
LA
10.5 10.5
WA
WS
LS