Vibration Resistance; Vibration Class - YASKAWA SGM Series User Manual

D Number of Impacts: 2
Since a precision detector is attached to the shaft at the end opposite the load end, do not subject
the shaft to direct impact as this may damage the encoder.
Figure 3.8

3.5.6 Vibration Resistance

The Servomotor will withstand a vibration acceleration of 24.5 m/s
verse, and longitudinal directions (See Fig. 3.9) when the axis of the Servomotor is mounted hor-
izontally.
Transverse
Figure 3.9

3.5.7 Vibration Class

The vibration class of the AC Servomotor is 15 µm or below at the rated speed (See Fig. 3.10).
Figure 3.10 Vibration Measurement
SGMj Servomotors have a precision encoder on the end of the shaft opposite the load. Do not
apply shock directly to the shaft; direct shock can damage this encoder.
Vertical
Horizontal shaft
Impact Measurement
Longitudinal
Vertical
Horizontal shaft
Vibration Resistance Measurement
Vibration measurement
position
3 -9
3.5 Mechanical Characteristics
2
(2.5 G) in the vertical, trans-
3