Modify P2-08 = 50 P2-12 = 40 P2-07 = 50 under default parameters
2 80 times inertia load gain parameter
Under the default parameter, modify P2-08 = 40 P2-12 = 50 P2-07 = 50 P2-05 = 200 P2-10 = 1000
5-5. Estimation of inertia ratio
5-5-1.Steps for estimating inertia ratio
Before inertia identification, please use F1-00 jog function to confirm the servo rotation direction. At the
beginning of inertia identification, Inc or Dec determines the initial direction of servo operation!
If the servo jitters under the adaptive default parameters, please switch to the adaptive large inertia mode (P2-
03.3 = 1) to ensure the stable operation of the servo before inertia identification!
When the servo is in BB state, enter the parameter F0-07 display:
5-5-2.Description of inertia ratio estimation
Equipment whose inertia ratio cannot be estimated
It is impossible to estimate the inertia ratio of some equipment, such as equipment with extremely short
stroke, equipment that can only run in one direction, two axis synchronous screw equipment, etc. The inertia
ratio of such equipment cannot be estimated and can only be calculated or estimated according to the
mechanical structure; If you know the structure type and relevant data of the equipment, you can directly
calculate the relatively accurate inertia ratio. If there is no such information, refer to the following steps:
1. Preset inertia ratio P0-07 = 500
2. Set the default rigidity grade P0-04 (15 for 750W and below; 10 for 1.5KW and above)
3. Operate at low speed and observe the servo operation
(1) If the servo operates stably, the load inertia ratio is between 0% and 600%. Next, adjust the rigidity
level according to the actual needs to achieve the rigidity and responsiveness required by the equipment.
(2) If the servo operation jitters or shakes; It shows that the actual load inertia ratio is far greater than
500%; At this time, change P0-07 to 1000 and run the equipment again to see if it shakes; If there is no jitter,
the inertia is appropriate; If it still jitters, continue to increase P0-07 to 1500%, and so on. However, in this
process, it should be noted that the greater the load inertia ratio is, the smaller the rigidity grade P0-04 can only
be, otherwise it will cause vibration caused by excessive gain. Therefore, when P0-07 = 500, the default
rigidity grade is OK. When P0-07 is larger, please reduce the rigidity grade P0-04 appropriately; When the
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