mrbill
10 kW
I am currently running just over 8 Amps (at 28 volts) through the controller's shunt to a dummy load and watching the forward Ah accumulator. So far everything seems to be working as it should.
But, as I was setting up and verifying my test apparatus I observed again a spurious "regen Ah" figure. "2.0833" it read. I do recall seeing this exact same number yesterday on the "regen Ah" display, so it may be significant. I'm not sure what I did to cause this to appear. Maybe just a transient in the line when I switched on the controller or when I was probing voltages in my circuit with a DVM or when I initially connected the dummy load and saw a small spark. Once I reset the CAV3, the test proceeded (and is currently proceeding) without any observed misbehavior.
I have tried to recreate the condition that led to the error: running the motor, flipping the controller on and off quickly (that also powers down and up the CAV3), disconnecting my dummy load, then reconnecting it with a small spark. Nothing seems to have duplicated the problem yet. But, I remain suspicious that there may be a sensitivity to interference of some sort. Maybe a low-pass filter isn't low enough.
I will run current through the dummy load past the 32 Ah mark where I started noticing problems on my ride yesterday and will report if I observe anything unexpected.
But, as I was setting up and verifying my test apparatus I observed again a spurious "regen Ah" figure. "2.0833" it read. I do recall seeing this exact same number yesterday on the "regen Ah" display, so it may be significant. I'm not sure what I did to cause this to appear. Maybe just a transient in the line when I switched on the controller or when I was probing voltages in my circuit with a DVM or when I initially connected the dummy load and saw a small spark. Once I reset the CAV3, the test proceeded (and is currently proceeding) without any observed misbehavior.
I have tried to recreate the condition that led to the error: running the motor, flipping the controller on and off quickly (that also powers down and up the CAV3), disconnecting my dummy load, then reconnecting it with a small spark. Nothing seems to have duplicated the problem yet. But, I remain suspicious that there may be a sensitivity to interference of some sort. Maybe a low-pass filter isn't low enough.
I will run current through the dummy load past the 32 Ah mark where I started noticing problems on my ride yesterday and will report if I observe anything unexpected.