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11. CHARACTERISTICS
11.3.2 The dynamic brake at the load inertia moment
Use the dynamic brake under the load inertia moment ratio indicated in the following table. If the load
inertia moment is higher than this value, the built-in dynamic brake may burn. If there is a possibility
that the load inertia moment may exceed the value, contact Mitsubishi.
Servo amplifier Load inertia moment ratio [times]
MR-J2S-10B to MR-J2S-200B
MR-J2S-10B1 to MR-J2S-40B1
30
MR-J2S-350B 16
MR-J2S-500B
MR-J2S-700B
15
(Note)MR-J2S-11KB to MR-J2S-22KB (Note) 30
Note. Assumes that the external dynamic brake is used.
11.4 Encoder cable flexing life
The flexing life of the cables is shown below. This graph calculated values. Since they are not guaranteed
values, provide a little allowance for these values.
1 10
7
5 10
7
1 10
8
5 10
6
1 10
6
5 10
5
1 10
5
5 10
4
1 10
4
5 10
3
1 10
3
a
b
F
l
e
x
i
n
g
l
i
f
e
[
t
i
m
e
s
]
4 7 10 20 40 70 100 200
Flexing radius [mm]
a : Long flexing-life encoder cable
MR-JCCBL M-H
MR-JHSCBL M-H
MR-ENCBL M-H
b : Standard encoder cable
MR-JCCBL M-L
MR-JHSCBL M-L