Spektrum SPMMSJR720 - Manual (Page 10)

Spektrum Air Module 18 Spektrum Air Module 19
4. Press and hold the bind button on the back of the module while turning on
the power switch. The bind button should flash and within a few seconds the
system should connect. The LEDs on the receivers should go solid, indicating
the system has connected.
5. Remove the bind plug and store it in a convenient place.
6. After you’ve programmed your model, it’s important to rebind the system so
the true low throttle and neutral control surface positions are programmed.
Note: To bind an aircraft with an electronic speed controller that powers
the receiver through the throttle channel (BEC), insert the bind plug into the
battery port and proceed to Step #2.
All of Spektrum’s aircraft receivers feature a unique SmartSafe failsafe system, while
the AR9000 features two types of failsafe: SmartSafe and preset failsafe.
SmartSafe
This type of failsafe is especially ideal for most types of electric aircraft and is also
recommended for most types of gas- and glow-powered airplanes and helicopters.
Here’s how SmartSafe works.
Receiver Power Only
When the receiver only is turned on (no transmitter signal is present), all servos
except for the throttle are driven to their preset failsafe positions, normally control
surfaces at neutral and the landing gear down. These failsafe positions are stored in
the receiver during binding. At this time the throttle channel has no output, to avoid
operating or arming the electronic speed control. In glow-powered models, the
throttle servo has no input so it remains in its current position.
After Connection
When the transmitter is turned on and after the receiver connects to the transmitter,
normal control of all channels occurs. After the system makes a connection, if
loss of signal occurs SmartSafe drives the throttle servo only to its preset failsafe
position (low throttle) that was set during binding. All other channels hold their
last position. When the signal is regained, the system immediately (less than 4 ms)
regains control.
Binding Failsafe Functions
Bind button