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Motor RPM Rises and jerks at Startup in STEVAL-ESC001V1

santhosh16
Senior

Hi,

I am using the steval-esc001v1 and the A2212 1000 KV BLDC Motor with the motor parameters are,
Screenshot (48).png

 

The ESC input range is 1060–1860 µs. I arm the ESC at 1000 µs and then increase the input to 1062 µs, at which point the motor starts running. After startup, the RPM and current gradually increase without any change in the input signal. Within few seconds it reaches 4000 rpm (approx), then motor suddenly jerks and then settles at a minimum speed of around 1000 RPM. Sometimes, after this jerk, the motor stops completely.

I would appreciate help with maintaining the motor speed at 1000 RPM after startup.

Additionally, the motor turns 1 rotation during the power-up of the STEVAL-ESC001V1. Is there a way to prevent this initial turn at power-up?

Best regards,
Santhosh.

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