Gdu Fault at rpm Variable

[seunghwan_jeon]

The motor was driven based on S12ZVMLMINIBRD_BLDC_SW_CW11.
It runs from 1000 rpm to 3500 rpm.
GDU Fault occurs when RPM is changed by 1 second.
Also added GDU fault clear function.
Charge pump function has also been added.
The reliability test has a variable speed test, but it does not work.
If you know, please help.

[pachamatej · Accepted solution]

Hello,

can you please be more specific about the situation you are getting the fault?

For example:

Are you using your own motor or the original one?

At which speed does the GDU fault appear?

Which GDU fault specifically do you see? (Use the FreeMASTER and look for _GDUF.byte and _GDUDSE.byte values after the fault occurs)

Please let us know.

Best regards,

Matej

[seunghwan_jeon]

Hi Thanks for the answer.
The same error value does not always occur when reading a GDU fault.
Sometimes only GDUF occurs, and sometimes it comes with a GDUDSE error.
Also, GDUDSE or GDUF bytes are different depending on the situation.
I tested it separately, but there is no such phenomenon in a square wave source.
Thank you.