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16. Fail-safe function
Your remote control receiver gives you the ability to put the throttle servo or electronic speed controller in a specific
position or in the stop function if a correct remote control signal is no longer received in the event of a fault.
If the neutral position (centre position of the driving function control lever) is set to the fail-safe position, the vehicle
will automatically coast if the radio transmission is disturbed or the model moves out of the transmitter range of the
remote control.
But you can also choose any brake position (for example, 50% braking effect in a combustion model vehicle) as a
fail-safe position. In this case, when setting the fail-safe function, you should fix the control lever for the driving function
in the desired position with a rubber ring.
To set the fail-safe setting, proceed as follows:
•
Move the operating lever to the desired position.
•
Turn the transmitter and then the receiver.
•
Then press and hold the fail-safe button (17) on the
receiver.
• The LED (16) in the receiver flashes twice and then
lights up again solidly.
•
Release the button in the receiver.
•
The fail-safe position is now saved.
•
The stored fail-safe position remains stored even after
the receiver has been switched off and on again.
Then carry out a function test, proceeding as follows:
When using a throttle servo, you can give a little gas while the engine is stopped and then switch off the transmitter.
The throttle servo must then run into the stored fail safe position after a short time.
For an electric model with an electronic speed controller, the vehicle should be jacked up so that the wheels can rotate
freely for the test. Then start the vehicle as usual. Move the operating lever for the driving function toward the handle
so that the electric motor starts at low speed and the wheels spin.
If you switch off the transmitter now, the electric motor should stop if previously stored as the fail-safe position for the
centre position of the operating lever for the driving function.
Figure 15
