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3.2
One-touch tuning
By turning on the one-touch tuning during servo motor operation, the one-touch tuning performs an adjustment in accordance
with the machine characteristic. The one-touch tuning has two methods: the user command method and the amplifier
command method.
User command method
The user command method performs the one-touch tuning by inputting commands from outside the servo amplifier. Although
it is necessary to input commands from the outside of the servo amplifier, the optimum adjustment can be made by taking both
the mechanical characteristics and the commands into accounts.
Amplifier command method
The amplifier command method generates an optimum tuning command inside a servo amplifier and performs the one-touch
tuning by simply inputting travel distance (permissible travel distance) that avoids collision with the machine during servo
motor driving. The one-touch tuning in this method can be performed easier than the user command method, and does not
require to generate commands from the outside of a servo amplifier. However, MR Configurator2 is required for performing
the one-touch tuning in the amplifier command method.
Precautions
• When the following servo parameters 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
The one-touch tuning cannot be performed in the following conditions.
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
• 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
• The one-touch tuning in the user command method cannot be performed at servo-off.
Restrictions on amplifier command method
• The one-touch tuning in the amplifier command method cannot be started during servo motor driving.
• The one-touch tuning in 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
16
3.2 One-touch tuning
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