Hi.
First note that i did not use the mow motor from shop but a similar one.
When the mow motor stop it brake immediatly and very hard.
In the past i use the mow motor at PWM=200 and the sense is between 200 and 800ma without any issue during 2 years.
Yesterday i made a test at PWM=255 and no particular problem before i stop it (it brake immediatly) and the driver crash.
Now always mow error (if i change with the driver wheel motor it's right motor error) so certainly the MC33926 is dead.
Why did the brake is so hard and how did it work to stop immediatly the DC motor ???
Maybe the 2 output in parallel ?
Maybe it's better to brake only on safety and not on normal OFF (reduce the PWM slowly for 2 second)
By.
First note that i did not use the mow motor from shop but a similar one.
When the mow motor stop it brake immediatly and very hard.
In the past i use the mow motor at PWM=200 and the sense is between 200 and 800ma without any issue during 2 years.
Yesterday i made a test at PWM=255 and no particular problem before i stop it (it brake immediatly) and the driver crash.
Now always mow error (if i change with the driver wheel motor it's right motor error) so certainly the MC33926 is dead.
Why did the brake is so hard and how did it work to stop immediatly the DC motor ???
Maybe the 2 output in parallel ?
Maybe it's better to brake only on safety and not on normal OFF (reduce the PWM slowly for 2 second)
By.