6 - 18
6 PARAMETERS FOR POSITIONING CONTROL
6.3.5 In-position range
(1) "In-position" is the droop pulses in the deviation counter.
(2) If an in-position value is set, the in-position signal (M2402 + 20n) turns on when
the difference between the position command and position feedback from the
servomotor becomes within the setting range.
Amount of droop
In-position
(M2402+20n)
ON
OFF
Setting value for in-position range
t
6.3.6 Feed forward gain
This parameter is used to improve the follow-up of the servo system.
The setting range is as follows:
When using the servo amplifiers....................0 to 100 [%]
6.3.7 Load inertia ratio
(1) This parameter sets the load inertia moment ratio for the servomotor.
The load inertia moment ratio is calculated using the following equation:
Load inertia moment
Load inertia moment ratio =
Motor inertia moment
(2) The result of automatic tuning is automatically set at the automatic tuning setting.
6.3.8 Automatic tuning
By detecting the current and speed at the start, the load inertia moment is automatically
calculated, and the most suitable gain is automatically set.
6.3.9 Servo responsiveness setting
(1) This parameter is used to increase servo responsiveness.
The servo responsiveness improves by changing the setting value of the servo
responsiveness to a higher value in the sequence 1, 2..., 5.
When the machine with high friction is used, set values within the range of 8 to C.
To Next Page
Loading...
