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Originally Posted by MPaulHolmes
To test it to 600ampRMS, you will have to change a couple resistor values.
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OK - I will have to add that to the list
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The hardware overcurrent trip point is set to an instantaneous current of 600amp on any of the 3 phases. That may have been a little too paranoid, since they are 600amp IGBTs, for crying in the night. haha. I think 400ampRMS may not trip them. That would be 565amp peak, but it may trip since remember how the Id and Iq currents were sort of jaggedy when they were following IdRef and IqRef...
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I will do my best to 'test' the trip point
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The current sensor can measure up to +/-900amp, so we could just change the resistor divider trip point a bit. Maybe 750amp instantaneous peak? Then at least you could test 400ampRMS safely? I don't know what resistor to add. That would take a couple minutes of figgerin'. You coudl just add a resistor in parallel with one that's alrady there. You woudl need 2 of the same value resistors.
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I'm sure we'll discuss this quite a bit more before I get around to soldering in extra resistors.