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6.3 Automatic gain adjustment
By the rigid equivalence selection function (PA33), automatically the servo
drive will generate a set of matched gain parameters to meet the
requirements of speediness and stability. And it is the automatic gain
adjustment.
Below is the rigidity grade description.
When it is set to 0, the rigidity grade parameter is invalid. When it is grade 1,
the rigidity is the weakest. When it is grade 31, the rigidity is the strongest.
According to different load types, the following experience values are for
reference.
Table 6-1 Rigidity grade reference
Recommended stiffness
grade
Load mechanism type
Grades 4 to 8
Large machinery and equipment
Grades 8 to 15
Machines with low stiffness such as belts
Grades 15 to 20
Machines with strong stiffness such as ball
screws and linear
ATTENTION
Before using the automatic gain adjustment function, make sure to
acquire the load inertia ratio correctly.
If the gain parameters obtained by setting PA33 cannot fully meet the
field requirements, you can set PA33 to an appropriate fixed value, and
then manually adjust PA5, PA6, PA9, and Fn40.
When inertia recognition and automatic gain parameters are not
implemented, the gain parameters can be adjusted manually.
