Yaskawa Sigma II Series DC Power Input SGMAJ - Manual (Page 57)

3 Specifications and Dimensional Drawings
3.3.3 Mechanical Characteristics of SGMAJ Servomotors
3-16
(3) Impact Resistance
Mount the servomotor with the axis horizontal. The servomotor will withstand the following vertical impacts:
• Impact acceleration: 490 m/s 2
• Impact occurrences: 2
(4) 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.
Vibration accelerationat flange: 49 m/s
2
(5) Vibration Class
The vibration class for the servomotors at rated motor speed is 15 µm or below.
(6) Protective Structure
The standard protection class for the protective structure is IP55 except for shaft opening.
Vertical
Impact applied to the servomotor
Vertical
Front to back
Horizontal shaft Side to side
Vibration Class
A vibration class of 15 µm or below indicates a total vibration amplitude of 15 µm maximum on the servomotor during
rated rotation.
TERMS