Mitsubishi Electric MR-J4-10B(-RJ) Instruction Manual page 563

17. APPLICATION OF FUNCTIONS
b) Amplifier command method
Input a permissible travel distance. Input it in the load-side resolution unit for the fully closed
loop control mode, and in the servo motor-side resolution unit for other control modes. In the
amplifier command method, the servo motor will be operated in a range between "current
value ± permissible travel distance". Input the permissible travel distance as large as possible
within a range that the movable part does not collide against the machine. Inputting a small
permissible travel distance decreases the possibility that the moving part will collide against
the machine. However, the estimation accuracy of the load to motor inertia ratio may be lower,
resulting in improper tuning.
Also, executing the one-touch tuning in the amplifier command method will generate a
command for the following optimum tuning inside the servo amplifier to start the tuning.
Servo motor
speed
Note. It will be automatically generated in the servo amplifier.
Fig. 17.2 Command generated by one-touch tuning in the amplifier command method
Item
An optimum travel distance will be automatically set in the range not exceeding the user-inputted permissible
Travel distance
travel distance with MR Configurator2.
A speed not exceeding 1/2 of the rated speed and overspeed alarm detection level ([Pr. PC08]) will be
Servo motor speed
automatically set.
Acceleration time
constant
An acceleration time constant/deceleration time constant will be automatically set so as not to exceed 60% of the
rated torque and the torque limit value set at the start of one-touch tuning in the amplifier command method.
Deceleration time
constant
Dwell time A dwell time in which the one-touch tuning error "C004" does not occur will be automatically set.
Servo motor
speed (Note)
Forward
rotation
0 r/min
Reverse
rotation
Acceleration
time constant
(Note)
17 - 32
Travel distance (Note)
Dwell time (Note)
Deceleration
time constant
(Note)
Description