Permissible Load To Motor Mass Ratio When The Dynamic Brake Is Used - Mitsubishi Electric MELSERVO-J4 Instruction Manual

10. USING A LINEAR SERVO MOTOR

10.2.4 Permissible load to motor mass ratio when the dynamic brake is used

Use the dynamic brake under the load to motor mass ratio indicated in the following table. If the ratio is
higher than this value, the dynamic brake may burn. If there is a possibility that the ratio may exceed the
value, contact your local sales office.
The values of the permissible load to motor mass ratio in the table are the values when the linear servo
motor is used at the maximum speed.
Permissible load to motor mass ratio
Linear servo motor
[Multiplier]
LM-F series 100
When actual speed does not reach the maximum speed of the servo motor, calculate the permissible load to
motor mass ratio at the time of using the dynamic brake by the following equation. (The upper limit is 300
times.)
Permissible load to motor mass ratio of the dynamic brake = Value in the table × (Servo motor maximum
2 2
speed /Actual using speed )
When an actual using speed is 2 m/s, the equation will be as follows.
2 2
Permissible load to motor mass ratio of dynamic brake = 100 × 2 /2 = 100 [times]
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