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Broken drive at 4000erpm

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craig w
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Joined: 2021-12-15 08:55
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Broken drive at 4000erpm

Hi

i have a problem with motor surging or sounding broken in power at approx 4000erpm any idea which parameters i should be changing to correct it ?

all the setups executed ok and all functions correctly, just this surging at the 1 spot 4000 erpm

its a large outrunner with a genuine 75 300 vesc

frank
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Do you use sensors and where is the transition RPM to sensorless?