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shane

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1. Question about Complex poles and zeroes detection of Power PMAC Servo Analyzer

In the procedure of plant transfer function Identification , the complex poles and zeros frequency can be detection automatic, but the damping factor of the poles and zeros need to trial and err for a right model. it takes a long time and you may not get the correct results; is there any tips about how to choose a initial damping factor？
2. Why are the pole-zero frequencies obtained by the notch filter calculator different

That make sense, Thanks, Eric
3. Why are the pole-zero frequencies obtained by the notch filter calculator different

Hi Eric, My IDE version is 4.3.0.107 From the image,my system's resonant frequency is 700Hz, but The Notch filter's Lightly Damped Zero Frequency and Heavily Damped Pole Frequency are not 700Hz. It seemed Lightly Damped Zero Frequency = 0.9 * Resonant Frequency ; Heavily Damped Pole Frequency = 1.45 * Resonant Frequency ; Generally，for a notch filter, the numerator and denominator frequencies will be set same with resonant frequency; but in IDE , they are different .
4. Why are the pole-zero frequencies obtained by the notch filter calculator different

Why are the pole-zero frequencies obtained by the notch filter calculator different in IDE？ Is there any advantage compared to the same pole-zero frequency?
5. How should I kown the remaining time of each axis until end of the motion

Thank you, Smakarem My Email is: wuxx@advancenb.com
6. How should I kown the remaining time of each axis until end of the motion

How should I kown the remaining time of each axis until end of the motion, such as a rapid motion, is there a structure data can get this infomation?
7. How To Tune Ksff and SffCycles

yes , if push the motor by hand，it's clearly the static friction will be larger than Coulomb friction
8. How To Tune Ksff and SffCycles

Hi Eric How can I kown how big this value should be, is there a recommend move to test it ?
9. How To Tune Ksff and SffCycles

In Ver 2.6.1 firmware , it have two parameters for static friction compensation, is there a notes about how to tune Motor[x].Servo.Ksff and Motor[x].Servo.SffCycles ?

The lookahead functuon and Data stucture Sys.PreCalc are all act on calculation in advance , I am confused about their different , if I setup Lookahead,will i need to optimazied Sys.PreCalc or not ? Can someone explain their difference for me , thank you!
11. Motor and ECAT configuration seemed disappear after powrcycle

In order to solve this problem ,I update my pmac firmware to 4.1.18. \$\$\$*** -> save -> \$\$\$ -> download the motor stup -> download the .eni file . It is worked, problem disappered, my machine can run again. but after a few hours , I poweron the pmac, Error monitoring: "FileConfigErr" and also "PwrOnFault". then I find I can't move my motor again. the I clear the pmac, redownload project and motor setup, no error occured , but when I power cycle , there is no project load in pmac. how can I sove this problem?