Yaskawa SGDH Linear Sigma Series - Manual (Page 168)

7 Wiring
7.1.2 SGLGW and SGLGM Linear Servomotors (Coreless Types)
7-4
7.1.2 SGLGW and SGLGM Linear Servomotors (Coreless Types)
(1) Magnetic Way Installation
The SGLGM magnetic ways are U-channel steel tracks with opposing magnets attached to the inner surfaces.
Make sure that no foreign particles (magnetic objects) are caught between the magnets when installing them.
Use the following procedure to install SGLGM magnetic ways.
1. After checking the magnetic way's two mounting reference surfaces, place the magnetic way on the refer-
ence surface of the machine base, making sure that hands are kept clear.
2. Press the magnetic way down closely onto the reference surface of the machine and secure it with bolts.
Note: Use hexagonal socket head bolts (tensile strength Class 10.9).
• When using linear servomotors with hall sensors, make sure that the hall sensor does not protrude from the
servomotor's magnetic way.
Otherwise, the linear servomotor may not operate properly. The hall sensor is built into the coil assembly in SGLGW-
30 and SGLGW-90 linear servomotor. The hall sensor is mounted on the end for other models.
CAUTION
Magnetic Way Model
SGLGM-
Bolt size
Tightening torque
(N•cm)
30†††† M4 360 to 500
40††††
M5 720 to 1010
60††††
90††††
M6 1220 to 1710
Magnets
Nameplate
Mounting reference
surface
Mounting reference surface