One-Touch Tuning; Restrictions On One-Touch Tuning - Mitsubishi Electric MR-J5 User Manual

3.2

One-touch tuning

By turning on one-touch tuning during servo motor operation, one-touch tuning performs an adjustment in accordance with
the machine characteristics. One-touch tuning can be performed using either of two methods: the user command method and
the amplifier command method.
User command method
The user command method performs one-touch tuning by inputting commands from outside the servo amplifier. Although it is
necessary to input commands from outside of the servo amplifier, an optimum adjustment that takes both mechanical
characteristics and commands into account can be made.
Amplifier command method
With the amplifier command method, simply input a travel distance that avoids collision with the machine (a permissible travel
distance) when driving the servo motor to generate an optimum command inside the servo amplifier and perform one-touch
tuning. This method allows for one-touch tuning to be performed more easily than with the user command method as it does
not require commands to be generated from outside of the servo amplifier. However, MR Configurator2 is required for
performing one-touch tuning using the amplifier command method.
Precautions
• When the following setting values are set in [Pr. PA08.0 Gain adjustment mode selection], [Pr. PB06 Load to motor inertia
ratio/load to motor mass ratio] is estimated at the start of one-touch tuning.
"0" (2 gain adjustment mode 1 (interpolation mode))
"1" (auto tuning mode 1)
"2" (auto tuning mode 2)
"4" (2 gain adjustment mode 2)
"6" (load to motor inertia ratio monitor mode)

Restrictions on one-touch tuning

One-touch tuning cannot be performed in the following cases.
Common restrictions on user command method and amplifier command method
• When [Pr. PA21.0 One-touch tuning function selection] is "0" (disabled)
• In the torque mode
• In the continuous operation to torque control mode
• When an alarm or a warning which disrupts the motor driving occurs
• In output signal (DO) forced output and motor-less operation
Restrictions on user command method
• One-touch tuning using the user command method cannot be performed at servo-off.
Restrictions on amplifier command method
• One-touch tuning using the amplifier command method cannot be started while the servo motor is driven.
• One-touch tuning using the amplifier command method cannot be performed when the positioning operation, JOG
operation, program operation, and test operation mode of machine analyzer function are being carried out.
3 ADJUSTMENT METHOD
18
3.2 One-touch tuning