Translations:KAVAN Smart PRO SBEC ESCs - Instruction manual/129/en

Set the minimum and maximum RPM of the main rotor according to your preferences. As soon as you move the throttle away from the idle position, the controller slowly spools up until it reaches the target speed. The speed is calculated according to the throttle channel value, where low throttle corresponds to the "Minimum RPM" and high throttle corresponds to "Maximum RPM".
Set the Spool-up Time to make the motor startups as smooth as possible. You may set the time up to 60s. The spool-up time is applied when the motor starts from zero

revolutions or if the autorotation bailout is disabled.

Configure the Autorotation bailout time and autorotation acceleration time. The autorotation bailout function is used in case you need to quickly exit the autorotation and prevent your model from crashing. In this case, as soon as you move the throttle channel away from the idle position, the "Autorotation acceleration" will be used to spin the motor until it reaches the required speed. The "Autorotation bailout" parameter sets the time after switching off the motor, when the autorotation bailout function may be activated. After exceeding this time, a standard spool-up time will be applied.
Advanced settings: Governor gains – (P)roportional and (I)ntegral. You may modify the gains to fine-tune the controller response to fast changes in the load during flight manoeuvres. Please perform the changes only in small steps and verify the resulting behaviour in a short test flight.