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10. CHARACTERISTICS
10 - 11
10.3.2 Permissible load to motor inertia when the dynamic brake is used
Use the dynamic brake under the load to motor inertia ratio indicated in the following table. If the load inertia
moment is higher than this value, the dynamic brake may burn. If the load to motor inertia ratio exceeds the
indicated value, contact your local sales office.
The values of the permissible load to motor inertia ratio in the table are the values at the maximum rotation
speed of the servo motor. The value in the parenthesis shows the value at the rated speed.
Servo motor
Permissible load to motor inertia
ratio [multiplier]
Servo motor
Permissible load to motor inertia
ratio [multiplier]
HG-KR053 HG-JR53
30
HG-KR13 HG-JR73
HG-KR23 30 HG-JR103
HG-KR43 HG-JR203
HG-KR73 HG-JR353 16 (30)
HG-MR053 35 HG-JR503 15 (30)
HG-MR13 HG-JR703 11 (30)
HG-MR23
32
HG-JR903 18 (30)
HG-MR43 HG-JR701M 5
HG-MR73 HG-JR11K1M
10 (30)
HG-SR51
30
HG-JR15K1M
HG-SR81 HG-JR22K1M 20 (30)
HG-SR121 HG-JR601 5
HG-SR201 HG-JR801 30
HG-SR301 16 HG-JR12K1 20 (30)
HG-SR421 15 HG-JR15K1 17 (30)
HG-SR52
30
HG-JR20K1 26 (30)
HG-SR102 HG-JR25K1 21 (30)
HG-SR152
21
HG-JR534
30 (30)
HG-SR202 HG-JR734
HG-SR352
13 (15)
HG-JR1034
HG-SR502 HG-JR1534
HG-SR702 5 (15) HG-JR2034
HG-SR524 5 (15) HG-JR3534 20 (30) (Note)
HG-SR1024
5 (17)
HG-JR5034 15 (30)
HG-SR1524 HG-JR7034 11 (30)
HG-SR2024
5 (15)
HG-JR9034 18 (30)
HG-SR3524 HG-JR701M4 7 (10)
HG-SR5024 HG-JR11K1M4
10 (30)
HG-SR7024 HG-JR15K1M4
HG-UR72
30
HG-JR22K1M4 20 (30)
HG-UR152 HG-JR6014 10
HG-UR202
16
HG-JR8014 30
HG-UR352 HG-JR12K14 20 (30)
HG-UR502 15 HG-JR15K14 30 (30)
HG-RR103
30
HG-JR20K14 26 (30)
HG-RR153 HG-JR25K14 21 (30)
HG-RR203 16
HG-RR353
15
HG-RR503
Note. When the maximum torque is increased to 400%, the permissible load to motor inertia ratio at the maximum speed
of the servo motor is 25 times.