Is there a way to ramp up the duty cycle in increments up to the desired setting rather than it beginning at the mapped value? I am using 2B and 3B to drive respective 6" fans that are mounted to an intercooler. For instance on a hot start when the IAT is heat soaked, map is commanding 70% DC for that given state of conditions the H bridge drivers go into protect, but do reset with a key cycle. Anything above 40% DC will do this, even though if I manually ramp them up from there it will run happily at 100% DC as the running current draw is less than 7A a piece. Obviously this is an inrush current issue, which could be completely solved by a duty cycle ramp. I also do not see a settings for current limit even in the beta software, though this was mentioned as a setting in the pinout manual. The other issue is that the software does not allow PWM frequncy above 2khz, even though the aformentioned manual states max frequency is 8khz.
The current limit and frequency of 8 kHz are only available in full bridge mode.
We will update the documentation to make it clear.
I assume you are using custom outputs?
We can add the maximum duty cycle rate setting for those outputs.
Yes custom outputs, triggered by IAT. I setup a table for DC vs temperature which works as intended. I would just like to limit startup DC to 30% for a second or two so that the fan is running at a constant rpm, then ramp up to the mapped value