Pa1_13 Tuning Mode Selection - Fuji Electric Alpha7 VV User Manual

CHAPTER 4 PARAMETER

PA1_13 Tuning mode selection

No.
13 Tuning mode selection
Select the tuning method of the servo amplifier. Refer to the following description to select the mode.
 Auto tuning (default value)
In this mode, the ratio of moment of inertia of the load of the machine is always assumed inside the
amplifier and the gain is automatically adjusted to the best one. "0" is entered, too, in case of easy
4
tuning.
 Semi-auto tuning
Use this mode if the load inertia ratio of the machine has relatively large fluctuation or the load
inertia ratio is not estimated correctly inside the amplifier.
The gain is automatically adjusted to the best one in relation to the setting of PA1_14 (load inertia
ratio).
 Manual tuning
Use this mode if auto tuning and semi-auto tuning modes do not function satisfactorily. Manually
enter the load inertia ratio and various gains.
 Interpolation control mode
Use this mode to adjust responses of each shaft to the command during interpolation of two or
more servomotor axes of an X-Y table or similar.
In this mode, PA1_51 (moving average S-curve time) and PA1_54 (position command response
time constant) that determine the following characteristics to commands must be entered
manually.
As well, PA1_14 (load inertia ratio) must be entered, too, manually.
The other gain adjustment parameters are automatically entered.
4-18
Basic Parameters
Name
0: Auto tuning
1: Semi-auto tuning
2: Manual tuning
3: Interpolation control mode
Setting range
Default
Change
value
0 Always