YASKAWA SGM H Series User Manual page 93

3 Specifications and Dimensional Drawings
3.3.2 SGMGH Servomotors (1500min
Servomotor
Servomotor
Model
Rated
SGMGH- Out-
Speed
put
W
min
1AA A B6
11 1500
1AA A C6
1AA A 76
Note: 1. For the shaft center allowable radial load, refer to the servomotor dimensional drawing.
2. Output torque and motor speed produce the following trends in efficiency. Values in the table are
at the rated motor speed.
3. 15-kW servomotors do not equipped with gears.
Efficiency
Output torque
4. The no-load torque for a servomotor with gears is high immediately after the servomotor starts,
and it then decreases and becomes stable a few minutes later. This is a common phenomenon
caused by grease being circulated in the gear and not by a faulty gear.
3-22
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-1
) With Standard Backlash Gears
Rated
Rated
Torque/
Torque Gear
Efficiency
N m Ratio
-1
N·m/%
(lb in)
(lb·in/%)
615/80
1/11
(5440/80)
1180/80
70 1/21
(10400/80)
1630/80
1/29
(14400/80)
Efficiency
Output torque
Gear Output
Instanta-
neous
Rated Max.
Peak
Speed Speed
Torque/
-1
Effective
min min
N·m/%
(lb·in/%)
1550/80
136 182
(13700/80)
2950/80
71
(26100/80)
4070/80
51
(36000/80)
(Cont'd)
Moment of Inertia J
-4 2
×10
kg·m
-3 2
(×10 lb·in·s )
Motor +
Gears
Gears
-1
370 90.0
(327) (79.7)
376 95.0
95
(333) (84.1)
519 238.0
69
(459) (211)