Manuals:MBPlusFblV5:Setupmenu N

Adjustment on the device

At first you have to enable the governor function at SETUP MENU point N. If not already done enter SETUP MENU by pushing an holding the button from operation mode for at least 2 seconds, then release when the Menu LED A lights solid (!). Then repeatedly press the button until the Menu LED N lights up. Here at SETUP MENU point N you can toggle between three different options by tapping the rudder stick. The Status LED indicates which option is currently active:

Status-LED	Governor mode
off	no governor - the RPM Governor is not used. All control commands on the throttle channel will be passed to [CH5] output directly.
red	electric governor - select this option if your helicopter is powered by an electric motor and an electric speed controller is plugged into [CH5] output of MICROBEAST PLUS. MICROBEAST PLUS reads the rpm signal from the speed controller or a phase sensor and controls the rotor speed accordingly. Note that the controller itself must not be operated in a (heli specific) governor mode. The speed controller must process the incomming throttle signals and control the motor as direct and unfiltered as possible.
blue	nitro governor - with this option MICROBEAST PLUS can govern the rotor rpm of a helicopter with nitro or gas engine. For this MICROBEAST PLUS controls the throttle servo which is connected to [CH5] output and that controls the carburetor of the engine. The motor rpm will be read from a magnetic or optical sensor that captures the rpm from the crankshaft of the motor, the clutch bell or the main gear.

So to enable the governor function choose red or blue depending on the type of helicopter/drive system you're using. Then briefly press the button to skip to the GOVERNOR MENU (this will only appear when the governor function is used, in case the governor is disabled = Status LED off, you will directly exit SETUP MENU!).