Spektrum SPMAR635 - Manual (Page 18)

EN
18
Initializing the AR635
1. Once the AR635 receiver has been programmed and the correct sensing
direction has been selected, it is very important to power off the receiver,
then power it back on to initialize the sensors.
2. Place the aircraft on the ground out of the wind, then power the receiver
ON.
3. Ensure the aircraft is immobile for 5 seconds so the AS3X system initial-
izes correctly.
Attention: The AS3X system will not activate until the throttle stick or trim is
increased for the first time.
The AS3X system will not activate until the throttle stick or trim is increased
for the first time. Once the AS3X is active, the control surfaces may move
rapidly on the aircraft. This is normal. AS3X will remain active until the AR635
is powered off.
CAUTION: Always complete a control direction test with the
transmitter and make sure the sensors are correcting in the proper
directions when you roll, yaw, and pitch the aircraft.
The three LEDs will indicate the gain value for each specific axis by the rate of
the blinking light. High gain is represented by a more frequent blinking LED, low
gain by a less frequent blinking. At zero gain the LED is OFF.
Adjusting the gain at the airfield
Always take off with a VERY conservative gain. Slowly increase gain untill you
reach the oscillation point. From that point, back off a step or two and you
should be in the ideal gain value. When flying a brand new airplane, always
takeoff with the flight mode set at General Flight. Partially increase the airspeed
(increase throttle) until you see if the plane oscillates.
If you see oscillation, immediately reduce airspeed/throttle. Once you detect
oscillation, identify what axis needs to have the gain adjusted. If it’s a windy
day, take the wind factor in consideration (plane speed is relative to the air and
not to ground). Once you get this process right for General Flight Mode, do the
same exercise with the 3D mode.
Set your 3D mode gain higher, perhaps only to fly up to 1/2 to 3/4 airspeed.
This will give the AS3X system more authority for corrections.