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Deactivate BEC Connection
If you want to use the flight controller with more than 10 NiMH-cells or with 4S LiPo-cells, the BEC
power supply to the receiver must be disconnected.
• For this, remove the plug (7) of the 3-pole connection cable from the receiver.
• Use a pin (8) to lift the locking nipple of the middle plug contact and carefully pull the plug from
the socket at the cable (see figure 2 A).
• The plug contact now open is folded backwards (see figure 2 B), then isolated with adhesive tape
and attached to the 3-pole cable.
• After disconnecting the BEC power supply, the receiver with the connected servo must be
powered by a separate 4.8 V receiver battery.
Taking the Flight Controller into Operation
Caution!
Before commissioning, check that the propeller is rotating correctly, and that the
propeller tappet is securely attached to the motor shaft.
Then secure the model so that the propeller can rotate freely and that the model cannot
move due to the force of air flow.
Make sure that no loose objects like paper or foils can be drawn in by the propeller or
blown away by the air flow.
Stay out of the danger area of the rotating propeller. Even in case of small propellers,
there is an acute risk of injury due to sharp-edged propeller blades.
• Turn on the transmitter first and put the lever for motor control into the motor-out-position.
• Insert the drive battery into the model and connect it to the flight controller.
When plugging in the fully charged battery, a small spark may appear at the plug
contacts. This is normal, because in this moment, the capacitators installed in the flight
controller are shortly charged with a high power impulse.
In case of correct transmitter settings, the motor emits three fast sound sequences after the drive
battery is connected. After a short pause, there will then be three separate tones at the same pitch,
and the motor will twitch shortly.
Attention!
If the motor only emits the three fast sequences without the three separate sounds, the
flight controller has not recognised the motor-out-position and does not start the motor
for safety reasons.
Either the control lever is not in the required motor-out-position or the servo path setting
values in the transmitter (dual rate or EPA values) have been reduced very far.
Further information on servo path settings can be found in the documents for the remote
control.
If the motor only emits four separate sounds at different pitch, the flight controller recognises the
current control lever position for motor control as full throttle position.
If the control lever is, however, in the correct "motor-off-position" on the transmitter, the reverse
function on the throttle lever must be activated.
Further information on this can be found in the documents for the remote control.
Flight Controller Function Check
When the motor control lever is in the motor-out-position, the drive motor must not turn. If the control
lever is slowly moved in the full throttle direction, the electro motor must start up and change its
speed depending on the lever position. Adjustment to the motor (timing) is made automatically.
If the propeller turns into the wrong direction, pull off two or the three motor connection lines (3) and
swap them.
Practical tip:
• Many computer remote controls enable manual adjustment of the throttle control curve to the
drive. In addition to the threshold value for motor-out and maximum performance, the throttle
curve form may also be set so that the drive has a linear power output.
• Use a clamp-on ammeter to measure your model drive's power consumption. An incorrectly
adjusted drive with a too large propeller can quickly have a too-high power consumption so that
the flight controller overloads after a very short time.
Figure 2
Braking
For an electric glider with a folding propeller, the two rotor blades must be folded backwards for
gliding. For this, the motor must be slowed when you quickly move the transmitter control lever into
the motor-out-position.
To activate or deactivate the braking function, proceed as follows:
• Turn on the transmitter first and put the lever for motor control into the full-throttle-position.
• Now connect the flight battery to the flight controller. Now the motor emits four separate sounds
at a different pitch.
• Push the motor control stick to the motor-off-position. Now the motor emits three separate sounds
at the same pitch.
• Disconnect the battery from the flight controller.
• The braking function was now switched on or off.
Deep Discharge Protection
To avoid deep discharge of the cells when using LiPo batteries, the drive is automatically switched
off when the current battery voltage undercuts a pre-determined percentage of the initial voltage.
Troubleshooting
If the flight controller/motor does not work or if movement of the motor control lever does not cause
the motor to start up, check that the drive battery and the three-pole flight controller plug (7) are
connected correctly. Then check that the drive battery was charged properly.
For testing, connect the flight battery to the receiver and check the basic remote control function.
If the flight controller does not receive any receiver signal that can be evaluated (e.g.
transmitter out of range, transmitter switched off, receiver output defective, cable break,
etc), the drive is automatically switched off for reasons of safety.
End of Operation
• Disconnect the battery from the flight controller.
• Now switch off the transmitter.
Disposal
Electric and electronic products do not belong in the household waste!
At the end of its service life, dispose of the product according to the relevant statutory
regulations.
Technical data
ECO-Line 20A
Cell number without BEC 2 – 4S LiPo
(6 – 16 V)
5 – 13 NiMH
Cell number with BEC
2 – 3S LiPo
(6 – 12.6 V)
5 – 10 NiMH
BEC
5 V/2 A
Continuous current (5 min)
20 A
Surge current (30 s)
20 A
Surge current (1 s)
25 A
Heat sink
No
Clock signal
12 kHz
Internal impedance
0.072 ohm
Dimensions approx.
40 x 26 x 8 mm
Weight approx.
16 g
These operating instructions are a publication by Conrad Electronic SE, Klaus-Conrad-Str. 1,
D-92240 Hirschau (www.conrad.com).
All rights including translation reserved. Reproduction by any method, e.g. photocopy, microfilming,
or the capture in electronic data processing systems require the prior written approval by the editor.
Reprinting, also in part, is prohibited.
These operating instructions represent the technical status at the time of printing. Changes in
technology and equipment reserved.
© Copyright 2009 by Conrad Electronic SE.
ECO-Line 30A
ECO-Line 50
2 – 4S LiPo
2 – 4S LiPo
5 – 13 NiMH
5 – 13 NiMH
2 – 3S LiPo
2 – 3S LiPo
5 – 10 NiMH
5 – 10 NiMH
5 V/2 A
5 V/2 A
30 A
50 A
30 A
50 A
35 A
60 A
Yes
Yes
12 kHz
12 kHz
0.049 ohm
0.025 ohm
40 x 26 x 11 mm
60 x 28 x 11 mm
18 g
32 g
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