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g) Impaired Radio Link during Flight Operation
You want to take off and the engines are already switched on or during flight operation. The red and the green LEDs
flash slowly at the same time and indicate a faulty radio link.
Possible causes:
Receiver crystal has fallen out of the base, receiver crystal is defective, receiver aerial has broken
off. Transmitter aerial not pulled out, second transmitter with the same transmitter channel switched on/ batteries from
transmitter empty. Check the possible cause and restart.
If there is any permanent radio interference during flight, the QuadroCopter will start an emergency landing and the
LEDs will also indicate an impaired radio link here by simultaneous flashing.
h) Emergency Landing Function
During operation, a permanent radio interference prevails. The QuadroCopter starts an emergency landing independ-
ently. The red and green LEDs flash slowly and simultaneously. Look for possible error causes on the basis of the
previously illustrated examples.
i) Low Voltage Monitoring
The battery voltage is permanently monitored. If a certain battery voltage is exceeded (threshold approx. 9.4 V), the
red LED starts to flash quickly. The green LED is permanently lit. This indicator can only be reset by disconnecting the
flight battery. If the red LED flashes, you should carry out a landing as quickly as possible and adjust the flight opera-
tion.
If the QuadroCopter is connected to a non-fully charged battery, this can also lead to undervoltage detec-
tion. In this case, fully charge the flight battery first of all and then try the take-off once again.
Summary of Contents for QuadCopter 650 ARF
Page 1: ... QuadroCopter 650 ARF Item no 20 93 00 Version 11 10 Operating Instructions ...
Page 24: ...24 i Possible Flight Modes Mode Throttle Yaw Pitch Roll 1 2 3 4 ...
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