Omron EasySpeed 3G3JE User Manual page 122

Compact simplified inverters
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Appendix
Conveyor Example
Jw: Axial inertia (at cylinder, 1 axis, kg·m
J1: Cylinder 1 inertia (at cylinder, 1 axis, kg·m
J2: Cylinder 2 inertia (at cylinder, 1 axis, kg·m
J3: Workpiece inertia (at cylinder, 1 axis, kg·m
J4: Belt inertia (at cylinder, 1 axis, kg·m
M1: Cylinder 1 weight (kg)
M2: Cylinder 2 weight (kg)
M3: Workpiece weight (kg)
M4: Belt weight (kg)
D1: Cylinder 1 diameter (mm)
D2: Cylinder 2 diameter (mm)
Roller Example
Jw: Axial inertia (roller, 1 axis, kg·m
J1: Roller 1 inertia (roller, 1 axis, kg·m
J2: Roller 2 inertia (roller, 2 axis, kg·m
M: Workpiece weight (kg)
D1: Roller 1 diameter (mm)
D2: Roller 2 diameter (mm)
7-4
J
(kg·m
w
M3
= J
+ J
D1
1
M1·D
=
M4
8
J
w
M1
M3·D1
M2
D2
+
4
2
)
2
)
2
)
2
)
2
)
J1
J
w
D2 J2
M
2
)
2
)
2
)
)
2
+ J
+ J
2
3
4
2
2
2
M2·D
D1
+
2
4
D2
2
2
M4·D1
−6
× 10
+
4
J
(kg·m
2
)
w
2
D1
= J1 +
J2 +
2
D2
2
M·D1
−6
× 10
4
Chapter 7

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