Question for stall error GDUDSE

minggangnie — Fri, 16 Jun 2017 06:36:14 GMT

Hi,

I'm using S12ZVML128 on my own PCB.

Motor is 240W, 12V, 20A

Motor can alignmen,But can't open loop start.

hardware parameter : I MAX 40A U DCB MAX 25V

Register GDUDSE=0X70

Re: Question for stall error GDUDSE

RadekS — Tue, 20 Jun 2017 12:05:23 GMT

Hi Minggang,
Desaturation error:
If the high-side power FET is turned on and the drain source voltage VDS is greater than Vdesaths after the blanking time tBLANK a desaturation error will be flagged. In this case, the associated desaturation error flag GDHSIF[2:0] will be set and the high-side power FET will be turned off. The level of the voltage Vdesaths can be adjusted in the range of 0.35 to 1.40V in GDUDSLVL register.

I suppose, that issue will be probably in some incorrect settings or hardware connection.
Could you share with us your schematic for short review?

I suppose, that you use one of reference projects as a template.
http://www.nxp.com/products/software-and-tools/run-time-software/automotive-software-and-tools/motor-control-development-solutions:AUTOMCDEVKITS
Could you please share with us your project or at least your settings for short review?

If any of this information are not public, you may create service ticket:
https://community.nxp.com/docs/DOC-329745

I hope it helps you.

Have a great day,
Radek

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Question for stall error GDUDSE

Re: Question for stall error GDUDSE