Mechanical Tolerances; Direction Of Motor Rotation; Impact Resistance - YASKAWA SGM Series User Manual

Servodrive Characteristics

3.5.5 Impact Resistance

3.5.3 Mechanical Tolerances

3

3.5.4 Direction of Motor Rotation

3.5.5 Impact Resistance
Note Radial and thrust load limit value are the sum of the loads generated by the motor
torque and external loads applied to the shaft.
Tolerances for AC Servomotor output shaft and installation are shown in Table 3.2.
Table 3.2 Mechanical Tolerances
Tolerance (T.I.R.)
Perpendicularity between the flange
face and output shaft
Mating concentricity of flange O.D.
Run-out at the end of the shaft
Note T.I.R. = Total Indicator Reading
AC Servomotor rotation when a positive direction instruction (and direction instruction) is input
is counterclockwise as viewed from the load end of the shaft.
Figure 3.7 Direction of Rotation for Positive Direction Instruction Input
Mount the servomotor with the axis horizontal. The servomotor must withstand the following
vertical impacts.
D Impact Acceleration: 490 m/s
D Number of Impacts: 2
(SGMP-15A)
D Impact Acceleration: 98 m/s
0.04 mm
(0.0016 in)
A
0.04 mm
(0.0016 in)
B
0.02 mm
(0.0008 in)
C
0.04 mm
(0.0016 in)
Forward rotation
2
(50 G)
2
(10 G)
3 -8
Reference Diagram