36 Servo connection
After setting the correct update frequency plug in the swashplate servos, but
do not install the servo horns yet as the servos could bind and get damaged on
first power up!
Figure 91
Figure 92
With electronic swashplate mixing the two aileron servos have to be connected to CH2
(=left) and CH3 (=right). With a mechanical mixed head (H1) the aileron servo connects
to CH2 and collective pitch servo to CH3. Plug the the elevator servo into CH1 port.
When using a scale helicopter with 90 degrees eCCPM you can connect a second elevator
servo to CH7 output on the MICROBEAST PLUS. Note that CH7 only is a signal output,
so you must power the servo from elsewhere, i.e. by getting power from the SYS-port
or CH5 using a Y-adapter (for + and - only!). Anyhow, with large scale helicopters we
recommend to use a separate power distribution unit to which you connect the servos.
This will be the better option in regards to robust and fail safe power distribution.
When you route the wire leads in your model make sure that there is no tension passed
to the MICROBEAST PLUS. Make sure that MICROBEAST PLUS is able to move
freely, so no vibrations get passed onto the unit by the wire leads. It is not recommended
to bundle or tie down the leads close to the MICROBEAST PLUS. On the other hand
the wires must be attached so that they are unable to move the MICROBEAST PLUS
during the flight caused by g-force. 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 PLUS. This makes the cables stiff and inflexible
and can cause vibrations being transmitted to MICROBEAST PLUS.
85
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