Impact Resistance; Vibration Resistance - YASKAWA Sigma-II Series User Manual

3 Servomotor Specifications and Dimensional Drawings

3.8.4 Impact Resistance

3.8.4 Impact Resistance

Mount the servomotor with the axis horizontal. The servomotor will withstand the following vertical impacts:
• Impact acceleration: 490 m/s
• Impact occurrences: 2

3.8.5 Vibration Resistance

Mount the servomotor with the axis horizontal. The servomotor will withstand the following vibration accelera-
tion in three directions: Vertical, side to side, and front to back. The amount of vibration the servomotor endures
will vary depending on the application. Check the vibration acceleration being applied to your servomotor for
each application.
SGMAH, SGMPH
SGMGH, SGMSH, SGMDH
3.8.6 Vibration Class
The vibration class
1
Vibration Class
TERMS
A vibration class of 15 μm or below indicates a total vibration amplitude of 15 μm maximum on the servomotor during
rated rotation.
3-40
2
Vertical
Servomotor Model
1
for the servomotors at rated motor speed is 15 μm or below.
Vibration
Acceleration
at Flange
2
49 m/s
Side to side
2
24.5 m/s
Vertical
Front to back
Horizontal shaft
Impact applied to the servomotor