Setup menu point C

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At Setup menu point C you can select the pulse length for the rudder servo‘s center position. Almost all commercially available servos work with 1500 - 1520 μs. But there are a few special rudder servos on the market which use a different center position pulse length.

Xservo 980.png

Here you can find a list of parameters for the most common servos. Please understand that we can not list all servo types. If a servo needs a special pulse length this usually is mentioned in the data sheet of the servo, mentioned on the packaging or directly printed on the servo. Ask the manufacturer of the servos or your local dealer for detailed information. If in doubt about the center pulse for your servo use the setting 1520 μs. It is very likely that the servo will work with this pulse length. Also when the servo is rated with 1500 μs center pulse use this setting. There is barely any difference between 1500 and 1520 μs and the operating pulse range is nearly the same, so these servos are all of the same type.

There is a relationship between the setting of the rudder servo center pulse length and the rudder servo frequency (Setup menu point D). If a pulse length is selected that does not allow a certain frequency, the frequency is automatically reduced. The center position pulse setting always has priority, since a servo can run without problems at a lower frequency but can not be operated with an incorrect center position pulse.

To select the desired servo center pulse repeatedly move the rudder stick in one direction until the Status-LED glows in the correct color.

Status-LED Rudder servo center pulse length
purple 960
red 760
blue 1520
off User defined

The option “user defined” allows you to choose your own setting that can be edited by using the StudioX software bundle and the separately available USB2SYS interface.

Push the button to save the configuration and to proceed to Setup menu point D.