User Manual
13
3.3 Servo connections and auxiliary channels
In slot CH1 is the elevator servo. With electronic swashplate mixing the two roll servos have to be con-
nected to CH2 and CH3, with a mechanical mixed head (H1) the roll servo connects to CH2 and pitch
servo to CH3. The tail servo is always connected on CH4.
Don’t plug the servos into the MICROBEAST yet! The correct servo type and appropriate driving
frequency has not yet been selected in the Setup menu. We recommend not installing the servo
horns yet as the servos could bind and get damaged on rst power up.
When you route the wire leads in your model make sure that there is no tension passed to the
MICROBEAST. Make sure that the MICROBEAST is able to move freely, so no vibrations get
passed onto the unit.
It is not recommended to bundle or tie down the leads close to the MICROBEAST.
On the other hand the wires must be attached so that they are unable to move the MICROBEAST
during the flight. In particular, do not use any shrink tubing or fabric hose to bundle or encase
the wiring in close proximity to the point at which the cables are plugged into the Microbeast.
This makes the cable stiff and inflexible and can cause even the slightest vibrations are trans-
mitted to Microbeast.
At this point we would like to point out that the correct dimensioning of receiver power supply is very
important (BEC and battery current rating, number of supply cables, cable diameter, cable length ...).
For ybarless helicopters, the load on the servos and the resulting power consumption is signicant-
ly higher than for helicopters with a ybar! Also the servos are constantly in motion when used with
an electrical control system.
Fig. 3
CH1
CH
120°
CH1
CH2CH3
140°
CH1
CH2CH3
Flight direction
90°
CH1
CH H3
2C
2C
H3CH
mechanical mixing electronic mixing