YASKAWA SGM H Series User Manual page 87

3 Specifications and Dimensional Drawings
3.2.3 SGMPH Servomotors With Low-backlash Gears
Servomotor
Servomotor
Model
Rated
Out-
SGMPH-
Speed
put
W
min
08 H1
08 HB
750
08 HC
08 H7
3000
15 H1
15 HB
1500
15 GC
15 G7
* 1. Maximum motor speed is up to 4000 min
* 2. Gear output torque is expressed using the following equation.
(Gear output torque) = (servomotor output torque) ×
* 3. The instantaneous peak torque values indicated with ∗3 are limited by the gear, so use the following
servomotor instantaneous peak torque. In this case, set torque limit parameters Pn402 and 403 for the
SERVOPACK at 250%.
Note: 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.
3-16
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Rated
Torque/Effi-
Torque Gear
ciency
N m Ratio
-1
(oz in)
(oz·in/%)
1/5
(1440/85)
1/11
(3160/85)
2.39
(338)
1/21
(6050/85)
1/33
(9490/85)
1/5
(2880/85)
1/11
(6320/85)
4.77 (675)
1/21
(11300/80)
1/33
(17800/80)
-1
at the shaft.
Gear Output
Instanta-
Rated
neous
Rated
Peak
∗2
Speed
Torque
min
N·m/%
N·m
(oz·in)
10.2/85 33.3
600
(4720)
∗3
22.3/85
71
273
(10100)
42.7/85 140
143
(19800)
∗3
67/85
206
91
(29200)
20.3/85 33.3
600
(4720)
44.6/85 71
273
(10100)
80.1/80 270
143
(38200)
∗3
126/80
353
91
(50000)
1
× (efficiency)
( )
gear ratio
Moment of Inertia J
-4
×10
kg·m
-3
(×10 oz·in·s
Max.
Motor +
∗1
Speed
Gears
-1
-1
min
2.87
800
(40.6)
2.62
363
(37.1)
2.76
190
(39.1)
2.56
121
(36.3)
5.56
800
(78.7)
6.11
363
(86.5)
6.00
190
(85.0)
5.14
121
(72.8)
(Cont'd)
2
2
)
Gears
0.765
(10.8)
0.523
(7.41)
0.663
(9.39)
0.455
(6.44)
1.54
(21.8)
2.09
(29.6)
1.98
(28.0)
1.12
(15.8)