Blown Focbox .. ( was Help diagnose cutouts. Dual focbox | can bus | 6384 maytech/lacroix motors | flipshit vx1 | metr logs )

[fessyfoo]

@Deodand mentioned this in another thread:

@Deodand

Just so you are aware setting fault time that low [50ms] can cause your ESC to blow more easily when other faults are triggered (overcurrent etc). Played around with this a bit when I was debugging something else and found that setting the fault timeout super low would blow FETs much more easily.

@fessyfoo

funny you should say that. I did blow up a fet on my other board recently.

In that temp sensor fault example what I observed was that the fault codes were recorded by
metr. as well as still available in vesc_tool because the focbox never fully bounced.

in this incident there were early cutouts and no recorded faults. which started my investigations before the final blown fet.

It’s still possible that the lower fault stop time contributed to this blown fet. it would have to be a contributing factor to something that did throw faults though which I didn’t catch. so jury’s still out on what blew this thing.