Multiplex ROXXY BL-Control 780 S-BEC Notice D'utilisation page 6

OFF position
4.2 Stick to centre
position
5. Select motor start-up behaviour
(five-times beep, continuously repeated)
5.1 For soft-start *
 stick to full-throttle
position
OR:
For standard start-up
 stick to motor OFF
position
5.2 Stick to centre position
6. Select automatic timing
(six-times beep, continuously repeated)
6.1 For automatic timing ON*

stick in full-throttle
position
OR:
For automatic timing OFF

stick to motor OFF
position
6.2 Stick to centre position
7. Select manual timing

only if automatic timing was previously set to OFF
(seven-times beep, continuously repeated)
7.1 For "hard" timing
(22 - 30 degrees)

stick to full-throttle
position
OR:
For "soft" timing (7 degrees)

stick to motor OFF
position
7.2 Stick to centre position
8. Select pulse frequency
(eight-times beep, continuously repeated)
8.1 For 8 kHz pulse frequency

stick to full-throttle
position
OR:
For 16 kHz* pulse
frequency

stick to motor OFF
position
8.2 Stick to centre position
9. Select model type
(nine-times beep, continuously repeated)
MULTIPLEX Modellsport GmbH & Co.KG • Westliche Gewerbestraße 1 • D-75015 Bretten • www.multiplex-rc.de
Operating Instructions ROXXY BL-Control 780 S-BEC
cell  throttle stick to motor OFF
position  open throttle  motor off
completely at 2.9 V / cell
NiXX batteries:
Motor speed is reduced at 6.0 V 
throttle stick to motor OFF position
 open throttle  motor off
completely at 5.8 V / cell
 Confirmation signal
emitted
Motor start-up time in
helicopter mode:
approx. 7.0 sec
in fixed-wing mode:
approx. 1.3 sec
Motor start-up time in
helicopter mode:
approx. 2.0 sec
in fixed-wing mode:
approx. 0.2 sec
 Confirmation signal
emitted
 Confirmation signal
emitted
Recommended for
out-runners
Recommended for
in-runners
 Confirmation signal
emitted
9.1 For helicopters (Governor
Mode)

stick to full-throttle
position
OR:
For fixed-wing models*

stick to motor OFF
position
10. Quitting programming mode
10.1 Stick to centre position
10.2 Stick to motor OFF position
* Default setting / as supplied
7. S-BEC = SWITCHING BEC
The ROXXY BL-Control S-BEC speed controller are equipped with a
high-performance regulator BEC system: the receiver and servos are
fed power from the flight battery via the regulator; no separate
receiver battery is required.
Never connect a separate receiver battery!
Please note that the ROXXY BL-Control S-BEC speed controller S-
BEC power supply can only deliver a limited current to the receiving
system in the model:
The actual current drawn by a servo varies according to its
performance, the frequency of commands and – in particular – the
freedom of movement of the control surface linkages (!). This means
that it is essential to measure the current drain of the servos in the
model before the first flight, and at regular intervals thereafter.
If you have no means of measuring the BEC current: carry out a test
run on the ground: operate the servos in a "normal" way (similar to
flying the model) until the low-voltage cut-off is triggered (i.e. battery
flat). At this point the speed controller should be no more than warm
to the touch, and the servos must work properly all the time, without
ever threatening to fail or move erratically.
Note: disabling the S-BEC system
The S-BEC system must be disabled, and a separate receiver
battery must be used instead, if:

the model carries more servos, or servos with a higher current
drain, than is permissible for the selected battery cell count ( 2.), or

problems are evident during the test-run
Disabling the S-BEC system: locate the UNI connector attached to
the three-core lead and remove the red wire (+). Insulate the bare
metal parts with a heat-shrink sleeve.
8. L
-
OW VOLTAGE CUT
If the battery voltage falls to the low-voltage threshold, the controller
automatically cuts off power to the motor. This ensures that sufficient
energy is available for the BEC power supply to allow a safe landing
to be carried out. A steady decline in motor speed is a further
indication that the flight battery is almost discharged; you should
initiate the landing as soon as you become aware of this.
If the controller cuts the motor, it can be switched on again briefly if
required by momentarily moving the throttle stick to the motor OFF
position (Reset function).
Note: do not use the low-voltage reset function more than
once or twice
Repeated throttling back to re-arm the motor may dis-charge the
flight battery to the point where the receiver power supply falters and
fails. Note that LiPo flight batteries can be permanently damaged if
they are deep-discharged.
 Confirmation signal
emitted
Governor mode = constant
rotational speed maintained
In Governor mode the
Brake is automatically
switched OFF, even if you
previously selected Brake
On
 Rising tone sequence
 Rising tone sequence
sounds twice: the controller
is ready for use, the altered
parameters have been
stored
-
OFF WITH RESET FUNCTION
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