Multiplex MULTIcont BL 27 Instrucciones página 7

3. Set the transmitter throttle stick (and trim!) to the desired idle
setting / motor OFF end-point.
4. Switch the transmitter on
5. Connect the flight battery to the speed controller
Caution: reversed polarity will instantly ruin the controller!
Receiver connections
Connect the receiver lead attached to the controller to the throttle
channel socket on the receiver.
If you are using a flight pack containing 10 cells or less do not
connect a separate receiver battery, as the MULTIcont supplies
power to the receiver and servos via the BEC system and its servo
lead.
With more than 10 cells you will need a separate receiver battery; in
this case the BEC system must be disabled: see Section 8.0 for details.
Caution: early AirTronics radio control systems:
The RED and BLACK wires in the receiver plug must be swapped
over, producing the colour sequence yellow / black / red. Use a knife
blade to raise the plastic lugs which secure the connector pins, pull
the pins out and swap them over to reverse the polarity as
described.
Using the power system in the model:
Before the first flight be sure to carry out a range check with the
RC system switched on.
Check for interference at full-throttle, half-throttle and idle.
Watch the servos: if they jitter or move uncontrollably, you have
an interference problem: seek out the source and eliminate it!
Using the system for the first time:
1. Connect the receiver lead to the receiver throttle output.
2. Always switch the transmitter on first!
3. Connect the flight battery to the controller. You will hear a single
beep.
4. Initially NOTHING will happen. The controller remains disabled
until the transmitter throttle stick has been at the idle position for
more than four seconds. So: move the throttle stick to idle, you
will then hear a series of beeps; the controller is now armed and
ready to go.
5. Now you can fly!
6. If the BEC low-voltage power-off circuit shuts down the motor
prematurely, i.e. before the model has landed, move the throttle
stick to idle, then slowly open the throttle again.
Bear in mind that the controller will switch off the motor again if
battery voltage falls below the low-voltage limit a second time.
8. F MULTI
EATURES OF THE CONT
The facilities of the MULTIcont
BEC - the BEC circuit supplies power to the receiver and the servos
connected to it via the servo lead. If you disable the BEC function
(with more than 10 cells), you will need a separate receiver battery.
In this case the red wire must be removed from the plug housing
and the contact insulated with a heat-shrink sleeve. The controller
now delivers no current to the receiver, and power for the receiver
and servos is supplied by the separate receiver battery.
BRAKE — the brake comes into action when you move the throttle
stick back to the idle end-point.
MOTOR POWER-OFF — the controller stops the motor when the
voltage of the flight pack falls below 65% of the initial battery
voltage. You can re-arm the controller by moving the throttle stick
back to idle, then carefully opening the throttle again.
WARNING: if you repeatedly close the throttle and re-arm the
motor, the flight pack may become so deeply discharged that
the BEC system can no longer supply power to the receiver, and
control is lost! Li-poly batteries may be permanently damaged by
MULTIPLEX Modellsport GmbH & Co.KG • Neuer Weg 2 • D-75223 Niefern-Öschelbronn • www.multiplex-rc.de
MULTIcont BL-27 / MULTIcont BL-37
BL-27/37
this treatment. Please use the re-arming facility no more than once
or twice during a flight.
FAILURE OF TRANSMITTER SIGNAL, or massive interference to the
RC system, causes the controller to shut down the motor
immediately. If control is restored, you can re-arm the motor after a
waiting period of one second by moving the throttle stick back to
idle.
START-UP SAFETY SYSTEM - this effectively avoids the risk of injury
caused by the motor bursting into life unexpectedly, e.g. if the
transmitter throttle stick is at FULL THROTTLE when switched on. The
controller remains disabled until the throttle stick has been at the
idle position for at least four seconds.
Until that time the controller remains disabled, and passes no
power at all to the motor.
Remember to arm the motor before attempting to fly the model!
LED — the LED is required for programming the controller. When the
motor is armed, and the throttle channel is at full-throttle, the LED
glows constantly to confirm that the unit's full-throttle setting is
reached, and full power is available.
9. E - MULTI
RROR DETECTION
DETECTING and ELIMINATING ERRORS
Everything is connected correctly, the BEC system is working,
the servos operate, but the throttle function does not work.
The most likely problem is that you have not waited the required
four seconds at idle, and the controller has not armed itself. Move
the throttle back to idle again (throttle trim also to idle end-point)
and wait for four seconds. If the motor does not run, you need to
reverse the throttle channel in the transmitter.
Read the transmitter's operating instructions to find out how to do
this. You should also check that the servo travel for the throttle
channel is set to at least 100% at the transmitter.
Every time you apply full-throttle, the controller switches off the
motor after a few seconds - especially with a freshly charged
battery.
The controller immediately switches off the motor if the battery
voltage falls below 65% of the initial battery voltage for a period
longer than 0.5 sec. This circuit avoids the risk of loss of control due
to insufficient voltage to the receiver. If this circuit trips prematurely,
especially with a fully charged battery, this is a clear indication that
the motor is drawing an excessive current, thereby causing a severe
voltage drop. If possible, measure the actual motor current, and
reduce the drain if necessary by fitting a smaller propeller, or
installing a larger-capacity battery.
The LED lights up at full-throttle
This is normal. The LED always glows when the full-throttle setting is
reached. The only exception to this is in programming mode.
Nothing works: receiver, servos and speed controller do not
respond.
Check all electrical connections for intermittent contact and correct
polarity (+/-). If the system still fails to work, ask the model shop
which supplied the controller for advice, or send the unit to our
importer or your nearest Service Centre. You will find the address at
the end of these instructions.
BL-27/37
CONT
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