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#1
 
10-27-2009, 08:53 PM
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I was see UHU controller and was start to project "my 18F4431 PID controller + HP UHU output stage. All work as I expect but with one problem what I can't find from where it come. Irrespective which speed is of motor movement I have some erratic clip of motor in not constant period - from time to time lik "ping ,ping ping" and motor stress a couple steps +/- and go to next stress which come after unknown period. Sometime is couple stress one after one but sometime only one and so on. I was look at scope and I cant find any anomaly in signals. The output stage is identical HP UHU with IRF540N and motor is 30V "duncanmotor with gear 6.25:1 with optical encoder RE30-2-500". I read it in 4X mode and drive 20KHz PWM from pic on CCP1 for Locked-Antiphase. Any idea or help please. The best regards /Robert  P.S. Sorry for bad English...    |
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Need advice in my project 
End of problems 
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