AnsweredAssumed Answered

L6470 vibration

Question asked by goncharov.sergey.001 on Nov 16, 2012
Latest reply on Dec 4, 2012 by Enrico Poli
Hello! My question is in follows:
I got L6470 working, but not in a desirable way. Stepper motor vibrates in all speed range. It seems that phase current form distorted as shown in Fig. 15 (Section 7.3, p. 35 of datasheet), because motor pulses each time when electrical position corresponds the full step. Low Speed Optimization option really reduces this effect at low speed but it still remain in all range causing the vibration. Is it normal operation state or I just haven't adjust driver properly? What I have to do in this case? Hope, somebody will help me..