10CH TXT Essential Instructions v1.docx 2024-09-05 4
ESC, after a brief delay, will normally shut down power to the motor.
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By contrast, the User-set failsafe option
causes the receiver on loss of signal to send a pre-set value to each of the servos and the ESC.
No-pulse failsafe is adequate for most electric powered models. User-set failsafe is often preferred, however.
To activate User-set Failsafe, proceed as follows:
1. Power ON the transmitter. Set sticks and switches to the positions required on loss of signal.
2. Power ON the receiver.
3. After 3 seconds but within 60 seconds of powering ON the receiver, press and hold the Failsafe button F.
4. Release button F when the green Setup LED turns ON, showing that the receiver has registered the
failsafe values.
5. Test failsafe (carefully) by turning off the transmitter (on the bench, not in flight!).
The receiver will retain the failsafe values until the procedure is repeated or the receiver is reset.
To cancel User-set Failsafe:
1. Power ON the receiver. If User-set Failsafe is active, the green Setup light will be ON.
2. After 3 seconds but within 60 seconds of power ON, press and hold button F.
3. Release button F when the green Setup LED turns OFF, indicating No-pulse mode.
4. Alternatively, you can cancel User-set Failsafe in the Text Display Setup menu.
Setup, if you are not wanting to use the stabilization function, is now complete.
Just a check: stabilization is not active if none of the red programming LEDs R1, R2 and R3 is lit (see the diagram
under “LED Identification“ on page 4). This is how the receiver is delivered.
Step 4: Activating Stabilization
The following assumes you are using a Spektrum Generation 2 or later programmable transmitter with the most
recent AirWare version. Compatible radios can also be used.
Programming the Receiver
For the LM0087X, programming the receiver to activate stabilization can be done in either of two ways: (1) with
Text Display, using the transmitter to display and adjust the various settings, or (2) the older way, using LEDs and
buttons on the receiver. In most cases, the Text Display method is easier. If you decide to use the LEDs and
buttons method, however, please refer to the LM0087 instructions available from:
https://www.rcgroups.com/forums/showatt.php?attachmentid=16965449&d=1676162451.
Activating stabilization requires programming the receiver, as explained below. Note that if stabilization is
active, certain mixes, notably Delta Wing (elevons) and V-Tail, MUST be done in the receiver, not in the
transmitter. This is NOT an option, as transmitter programming of such mixes will likely cause a crash.
WARNING: If doing any programming of an electric powered model with the motor connected, please remove
the propeller for your safety!
LED Identification
Although with the LM0087X you will be doing programming primarily via Text Display, it’s still important to
understand the LEDs in order to verify the receiver setup. This diagram, together with the one on page 2,
identifies the buttons, pots (potentiometers) and various indicator LEDS. Please review them carefully.
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Some ESCs may behave differently; be sure to test yours.
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