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12 CHARACTERISTICS
12.3.2 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.
The values of the load inertia moment ratio in the table are the values at the maximum rotation speed of the
servo motor.
Servo
amplifier
Servo motor
HF-KP HF-MP HF-SP 1 HF-SP 2 HC-RP HC-UP HC-LP HA-LP 1
HA-
LP
1M
HA-LP
2
MR-J3-10T(1) 30 30
MR-J3-20T(1) 30 30
MR-J3-40T(1) 30 30
MR-J3-60T 30 30 30
MR-J3-70T 30 30 30
MR-J3-100T
30 30 30
MR-J3-200T 30 30 30 30 30
MR-J3-350T 16 16 16 16 16
MR-J3-500T 15 15 15 15 15 15
MR-J3-700T
5 (Note 1)
5 (Note 1) 5 (Note 1) 5 (Note 1)
MR-J3-11KT
(Note 2)
30 30 30
MR-J3-15KT
(Note 2)
30 30 30
MR-J3-22KT
(Note 2)
30 30 30
Servo
amplifier
Servo motor
HF-SP 4 HA-LP 14
HA-
LP
1M4
HA-LP
24
MR-J3-60T4 5 (Note 1)
MR-J3-100T4 5 (Note 1)
MR-J3-200T4 5 (Note 1)
MR-J3-350T4 5 (Note 1)
MR-J3-500T4 5 (Note 1)
MR-J3-700T4 5 (Note 1) 10 10
MR-J3-11KT4
(Note 2)
30 30 30
MR-J3-15KT4
(Note 2)
30 30 30
MR-J3-22KT4
(Note 2)
30 30 30
Note 1. The load inertia moment ratio is 15 at the rated rotation speed.
2. When the external dynamic brake is used.