Intelligent Motion Systems MDrive AC Plus 34, Operating Instructions Manual

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MDriveAC Plus Microstepping Hardware - Revision R052506
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Appendices
Planetary Gearbox Inertia
In addition to System Inertia, the Planetary Gearbox inertia must also be included when matching system
inertia to motor inertia. The Planetary Gearbox inertia varies with the ratio and the number of stages.
The table below lists the inertia values for the MDrive34 Planetary Gearbox. The values are in oz-in-sec
2
(ounce-inches-second squared). To calculate the inertia in kg-cm
2
(kilograms-centimeter squared) multiply
oz-in-sec
2
by 70.6154.
Stages
Rounded
Ratio
1-Stage
4:1
5:1
7:1
2-Stage
14:1
16:1
18:1
19:1
22:1
25:1
27:1
29:1
35:1
46:1
3-Stage
51:1
59:1
68:1
71:1
79:1
93:1
95:1
100:1
107:1
115:1
124:1
130:1
139:1
150:1
169:1
181:1
195:1
236:1
308:1
MDrive 34
Gearbox
MDrive 42
Gearbox
0.00233660
0.00154357
0.00128867
0.00219499
0.00179847
0.00182679
0.00141612
0.00148693
0.00177015
0.00148693
0.00124619
0.00126035
0.00126035
0.00218082
0.00178431
0.00179847
0.00147276
0.00179847
0.00124619
0.00147276
0.00148693
0.00124619
0.00148693
0.00124619
0.00124619
0.00144444
0.00124619
0.00126035
0.00124619
0.00126035
0.00126035
0.00126035
Planetary Gearbox Inertia Moments (oz-in-sec
2
)
TBD
Table B2: Planetary Gearbox Inertia Moments