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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 BEC system
The 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 BEC system: locate the UNI connector attached to
the three-core lead. Use a pointed instrument to raise the plastic
lug of the red wire (+), and withdraw the red wire from the plastic
housing. 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 discharge 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.
9. F
-
AULT
FINDING
The controller switches the motor off after a few seconds
The controller will switch the motor off immediately if the battery
voltage falls below the low-voltage threshold. This is designed to
prevent loss of control of the model due to low voltage at the
receiver. If the battery is fully charged and you apply full-throttle,
a motor cut indicates a serious voltage collapse in the flight
battery. Measure the current drain, and either install a smaller
propeller or fit a battery with a higher current delivery capacity
(higher C-rate).
Serious interference or failure of the transmitter signal will also
cause the controller to cut the motor immediately. Throttle the
motor back, wait about one second, then re-arm the controller by
opening the throttle again; this will only work if proper reception
has been restored.
Everything is connected correctly, the BEC system is
working, the servos are operating, but the throttle function
does not work
You probably did not wait long enough in the motor OFF position
after connecting the flight battery; this means that the controller is
not armed. Move the stick back to the motor OFF position (trim
also at idle end-point) and wait one or two seconds. Check that
the throttle channel is set to full travel, i.e. at least 100%. If the
two rising beep sequences still do not sound, and the motor still
does not start, you need to reverse the direction of operation of
the throttle channel at the transmitter.
MULTIPLEX Modellsport GmbH & Co.KG • Westliche Gewerbestraße 1 • D-75015 Bretten • www.multiplex-rc.de
Operating Instructions
MULTIcont BL-15 brushless controller
-
OFF WITH RESET FUNCTION
,
FAULT CORRECTION
Nothing works: receiver, servos and controller do not
function at all
Check all plugs, sockets and solder joints for intermittent contact,
and check again for correct polarity (+/-). If the unit still does not
work, contact the dealer from whom you purchased the speed
controller.
10. G
/ L
UARANTEE
Our products are covered by the currently valid statutory
guarantee regulations. If you wish to make a claim under
guarantee, please contact the model shop where you originally
purchased the unit.
The guarantee does not cover faults caused by:
•
Incorrect handling, incorrect connections, reversed polarity
•
The use of accessories other than original MULTIPLEX items
•
Modifications or repairs not carried out by MULTIPLEX or by
an authorised MULTIPLEX Service Centre
•
Accidental or deliberate damage
•
Normal wear and tear
•
Use of the unit outside the stated Specification
MULTIPLEX Modellsport GmbH & Co.KG accepts no liability for
loss, damage or costs which are caused by the incorrect or
incompetent use of the product, or are connected with such use
in any way.
11. CE C
ONFORMITY
This device has been assessed in accordance with the
relevant harmonised European directives.
You are therefore the owner of a product whose design fulfils the
protective aims of the European Community relating to the safe
operation of equipment.
You are entitled to see the conformity declaration. Please ask
MULTIPLEX Modellsport GmbH & Co.KG for a copy.
12. D
N
ISPOSAL
OTES
Electrical equipment marked with the cancelled waste
bin symbol must not be discarded in the standard
household waste; instead it must be taken to a suitable
specialist disposal or recycling system.
In the countries of the EU (European Union), electrical
equipment must not be discarded via the normal domestic refuse
system (WEEE - Waste of Electrical and Electronic Equipment,
Directive 2002/96/EG). You can take un-wanted equipment to
your nearest local authority waste collection point or recycling
centre, where the staff will dispose of it correctly and at no cost to
yourself.
By returning your unwanted equipment you can make an
important
contribution
to
environment!
E
IABILITY
XCLUSION
D
ECLARATION
the
protection
of
our
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