15. USING A LINEAR SERVO MOTOR
15 - 31
15.4.4 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.
Linear servo motor
(primary side)
Permissible load to motor mass ratio
[Multiplier]
LM-H3 series
40
LM-U2 series
100
LM-F series
LM-K2 series
50
When actual speed does not reach the maximum speed of the linear 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
speed
2
/Actual using speed
2
)
For example, when an actual using speed is 2 m/s or less for the LM-H3P2A-07P motor (maximum speed:
3.0 m/s), the equation will be as follows.
Permissible load to motor mass ratio of dynamic brake = 40 × 3
2
/2
2
= 90 [times]
Summary of Contents for MR-J4-100A(-RJ)
Page 19: ...10 MEMO ...
Page 75: ...1 FUNCTIONS AND CONFIGURATION 1 56 MEMO ...
Page 83: ...2 INSTALLATION 2 8 MEMO ...
Page 159: ...3 SIGNALS AND WIRING 3 76 MEMO ...
Page 203: ...4 STARTUP 4 44 MEMO ...
Page 351: ...7 SPECIAL ADJUSTMENT FUNCTIONS 7 40 MEMO ...
Page 365: ...8 TROUBLESHOOTING 8 14 MEMO ...
Page 387: ...9 DIMENSIONS 9 22 MEMO ...
Page 403: ...10 CHARACTERISTICS 10 16 MEMO ...
Page 553: ...12 ABSOLUTE POSITION DETECTION SYSTEM 12 30 MEMO ...
Page 567: ...13 USING STO FUNCTION 13 14 MEMO ...
Page 607: ...14 COMMUNICATION FUNCTION MITSUBISHI ELECTRIC GENERAL PURPOSE AC SERVO PROTOCOL 14 40 MEMO ...
Page 639: ...15 USING A LINEAR SERVO MOTOR 15 32 MEMO ...
Page 767: ...18 MR J4 03A6 RJ SERVO AMPLIFIER 18 84 MEMO ...
Page 856: ...APPENDIX App 41 ...
Page 905: ...MEMO ...