Mitsubishi Electric MELSERVO-J3 Series Manual page 322

Part 5: Common Reference Material
(c) Caution for one-touch tuning
1) Caution common for user command method and amplifier command method
a) The tuning is not available in the torque control mode.
b) The one-touch tuning cannot be executed while an alarm or warning which does not continue
the motor driving is occurring.
c) The one-touch tuning cannot be executed during the following test operation mode.
Output signal (DO) forced output
Motor-less operation
2) Caution for amplifier command method
a) Starting one-touch tuning while the servo motor is rotating displays "C006" at status in error
code, and the one-touch tuning cannot be executed.
b) One-touch tuning is not available during the test operation mode. The following test operation
modes cannot be executed during one-touch tuning.
Positioning operation
JOG operation
Program operation
Machine analyzer operation
c) After one-touch tuning is executed, control will not be performed by commands from the servo
system controller. To return to the state in which control is performed from the servo system
controller, reset the controller or cycle the power of the servo amplifier.
d) During one-touch tuning, the permissible travel distance may be exceeded due to overshoot,
set a value sufficient to prevent machine collision.
e) When Auto tuning mode 2, Manual mode, or 2 gain adjustment mode 2 is selected in [Pr.
PA08 Auto tuning mode], the load to motor inertia ratio will not be estimated. An optimum
acceleration/deceleration command will be generated by [Pr. PB06 Load to motor inertia
ratio/load to motor mass ratio] at the start of one-touch tuning. When the load to motor inertia
ratio is incorrect, the optimum acceleration/deceleration command may not be generated,
causing the tuning to fail.
f) When one-touch tuning is started by using USB communication, if the USB communication is
interrupted during the tuning, the servo motor will stop, and the tuning will also stop. The
parameter will return to the one at the start of the one-touch tuning.
g) When one-touch tuning is started via the controller, if communication between the controller
and the servo amplifier or personal computer is shut-off during the tuning, the servo motor will
stop, and the tuning will also stop. The parameter will return to the one at the start of the one-
touch tuning.
h) When one-touch tuning is started during the speed control mode, the mode will be switched to
the position control mode automatically. The tuning result may differ from the one obtained by
executing tuning by using the speed command.
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