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The Fail Safe function is used to prescribe what the PCM receiver will do in the event radio
interference is received. In this menu, you may select from one of two options of operation for
each channel. The "NORM" (normal) setting holds the servo in its last commanded position,
while the "F/S" (Fail Safe) function moves each servo to a predetermined position. The
default setting is NORM (normal) for all channels.
The use of the fail safe function is recommended from the standpoint of safety. You may
wish to set the throttle channel so that the engine idles when there’s interference. This may
give enough time to fly away from and recover from the radio interference. If you choose to
specify a failsafe setting, the fail safe data are automatically transmitted once each minute.
Battery Failsafe
Your system provides a second safety function called Battery Failsafe. When the airborne
battery voltage drops below approximately 3.8V, the battery fail safe function moves the
throttle to a predetermined position.
When the battery failsafe function is activated, your engine will move to idle (if you haven’t
set a position) or a preset position. You should immediately land. You may temporarily reset
the failsafe function by moving the throttle stick to idle, at which time you’ll have about 30
seconds of throttle control before the battery function reactivates.
Setting the Failsafe Function
Channel
display
"NORM" or
Failsafe position
(NORM shown)
*The blinking item is what is
being set.
Channel display
No.
CH1
CH2
CH3
CH4
Channel Name
AI = Aileron
EL = Elevator
TH = Throttle, AB: Air brake
RU = Rudder
No.
CH5
CH6
CH7
CH8
Channel Name
GY = Gyro, GE = Landing gear, 5 = Channel 5
PI = Pitch, FL = Flap
Channel 7
Channel 8
To REVERS
function
To EXP
function
Data input keys
These keys are used to set
failsafe for channels 1-8 in
this menu.
1. Aileron fail safe setting
Select the Failsafe function
for CH1 by pressing the (-)
key. Next, hold the aileron
stick in the position you want
to memorize and set the
position by pressing the (+)
and (-) keys simultaneously.
(If you wish, you may return
to the NORM position by
pressing the (+) key )
2. Set the following
channels in the same
manner: CH2 = Elevator,
CH3 = Throttle, CH4 =
Rudder, CH5 = Gyro, CH6=
Pitch, CH7, CH8
The initial setting for all channels
is "NORM". When failsafe mode
is turned on, the initial position
settings are 50% for throttle and
0% for the other channels.
When you choose the failsafe mode, check that your settings are correct by turning off the transmitter
power switch and verifying that the servos move to the settings that you chose. Be sure to wait at
least one minute after turning on the transmitter and receiver power before turning off the transmitter.
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