Yes. Pretty sure the primary reason was that the fuse system needs to support 1600 Amps

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Which comes back to part B of my question, how do we protect both the inverter and batteries when driving aggressively/racing?
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Maybe something like this:

- Fuses sized to protect the cable, but large enough to not blow unless something catastrophic happens....like a dead short in ...

My experience is that, when pushing the limits, you are more likely to drop a BMS contactor so it is a major concern if the inverter is going to blow.

While I know that this back-EMF issue can occur in other inverter/drive systems, I haven't experienced this with inverters like Rinehart (Cascadia ...

Thanks for the confirmation...and certainly something that others need to consider in their build and testing.

Fortunately I have some other drive units.

We have attempted to pull the SDU inverter out of the housing to investigate, but not as easy as expected. Wrong thread for this though...

After a short drive yesterday, my main contactor shut off, and then my precharge resistor and relay overheated/ caught on fire. The cause: my tesla motor appears to be shorted out, as in the resistance between the 2 power leads is 0 ohms. :( Any ideas on what this might be? I'm hoping it's not ...

Maybe someone has seen this symptom previously?

Having inadvertently loaded the wrong firmware (FOC) and then attempting to revert back to the correct version (Sine), I can no longer see the Parameters table in the Web Interface. I did transfer some files to the inverter when trying to work out why ...

Suggest reading up about firmware updates but correct in that you do not use the foc version on Tesla boards. If the parameters are not being displayed it means the mcu is not communicating and most likely not programmed correctly.


Thanks for the response. I have tried reverting back to the ...

Got my Large Drive Unit running late last week, but thought it best that I update the firmware on the board before going any further....and now it won't run. It also has different parameters.

I am confident that I have loaded the wrong firmware (new FOC version) for the Tesla board, but would ...