Direction Of Servomotor Rotation; Impact Resistance; Vibration Resistance; Vibration Class - YASKAWA SGDH User Manual

3.8.3 Direction of Servomotor Rotation

Positive rotation of the servomotor is counterclockwise when viewed from the load. (Same as for servomotors
with gears.)
Positive direction

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
Vertical

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.
Servomotor Model
SGMAH, SGMPH
SGMSH, SGMGH, SGMDH, SGMUH

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.
2
1
for the servomotors at rated motor speed is 15 µm or below.
3.8 Mechanical Specifications of Servomotors
Vibration
Acceleration
at Flange
2
49 m/s
Side to side
2
24.5 m/s
3-45
Vertical
Front to back
Horizontal shaft
Impact applied to the servomotor
3