! These operating instructions are an integral part of this
product. They contain important information and safety notes,
and should therefore be kept in a safe place at all times. Be sure
to pass them on to the new owner if you ever dispose of the
product.
1. S
PECIFICATION
MULTIcont
Order No.:
Cell count:
Continuous / peak current:
Internal resistance:
Pulse frequency:
Receiver power supply (BEC) with up to 10 cells
BEC voltage:
BEC current:
Dimensions:
Weight:
2. S
AFETY NOTES
! Read the instructions before using the controller.
! Avoid heat build-up:
Provide unobstructed air circulation round the controller.
! Do not connect the flight battery with reversed polarity:
Connecting the battery leads with reversed polarity will
instantly wreck the controller.
For this reason: • red wire to the POSITIVE terminal ( + ),
• black wire to the NEGATIVE terminal ( - )
! When soldering or working on the motor or controller:
Always disconnect the battery (short-circuit / injury hazard)
! When
testing
and
Do not run the motor while holding it in your hand; always
secure the model firmly. Check that there is adequate space
for the propeller to rotate. Remove all objects from the area
around the propeller which could be sucked in or blown away
(clothing, paper etc.). Never stand in the rotational plane of
the propeller (injury hazard).
3. S
PECIAL FEATURES
Programmable brake for folding propellers
ESC with low voltage cut-off and reset function for Li-Po and
NiCd / NiMH cells
Immediate motor cut if transmitter signal fails, or interference
occurs
Power-on guard prevents motor bursting into life when the
flight battery is connected
Motor can be run in either direction
4. W
MULTI
IRING THE
! Note:
Soldering is usually required in order to complete the wiring of
the controller. Soldering requires some care, as the quality of the
joints is crucial to the reliability of the power system:
use electronic-grade solder for all soldered joints
do not use acid-based solder flux
parts to be soldered must be hot enough (the solder must
flow), but must not be overheated (damage to components)
if you are unsure, ask a modeller with experience in
soldering to help you
MULTIPLEX Modellsport GmbH & Co.KG • Neuer Weg 2 • D-75223 Niefern-Öschelbronn • www.multiplex-rc.de
All manuals and user guides at all-guides.com
Operating instructions - MULTIcont BL-17
BL-17
7 2274
5 - 12 NiCd / NiMH
2 - 3 Li-Po
17 A / max. 22 A
0.013 Ohm
~ 13 kHz
5 V
max. 1.5 A
26 x 17 x 8 mm
9 g incl. cables
running
the
power
system:
BL-17
CONT
Attaching the battery connectors
The battery connectors must be soldered to the wires at the end
of the controller which features just two wires and the three-core
receiver lead. If necessary, cut down the wires at the battery end
to the correct length. Take great care to maintain correct polarity
when attaching the connectors. Fit individual heat-shrink sleeves
over each soldered joint to provide thorough insulation.
! Important note:
You must be absolutely certain that the polarity is correct! If you
make a mistake here, the controller will instantly be ruined.
Connecting the controller to the motor
The motor must be connected to the wires at the end of the
controller which features three wires. Keep the controller wires
as short as possible, but do not shorten the wires attached to the
motor! Strip the end of the controller wires (to the motor) so that
you can solder the joints easily. When you have established the
correct direction of rotation, and no further soldering is required,
insulate each soldered joint separately with a heat-shrink sleeve.
Reversing the direction of motor rotation
If the motor spins in the wrong direction, simply swap over any
two of the three wires running to the motor terminals. If you do
not wish to do this, please note that it is also possible to reverse
the motor direction using the programming procedure (
5. U
SING THE CONTROLLER FOR THE FIRST TIME
1. Connecting the controller's receiver lead (BEC) to the
receiver
Connect the servo lead attached to the controller to the
receiver socket corresponding to the throttle channel:
for example, with all MULTIPLEX radio control systems this
is channel 4 = throttle / motor
Negative pin ( )
black (brown)
Positive pin (+)
Signal (
)
yellow (orange)
Do not connect a separate receiver battery, as the
MULTIcont BL-17 supplies electrical current to the receiver
(and the servos connected to it) via the BEC system.
2. If your radio control system is programmable, set servo
travel for throttle / motor to 100% on both sides.
3. Move the throttle stick (and the associated trim) on the
transmitter to the idle end-point, or motor STOPPED. Note:
you may need to reverse the servo direction of the throttle
channel; see the Fault-Finding section.
4. Switch on the transmitter
5. Connect the flight battery to the speed controller
By default the MULTIcont BL-17 is in Li-Po mode. You will
hear an initialisation beep, followed by two or three beeps
which indicate the number of battery cells the controller has
detected (see BEC / low-voltage cut-off
After this the controller emits a single beep every 30 seconds
when at idle; this is intended to remind you that your model is
switched on. If you are using NiCd or NiMH cells, please
follow the programming instructions
By default the brake is switched off, because this is preferred
for most 3D and park-fly models. If you wish to activate the
brake (generally because the controller is required to work
with a folding propeller), please follow the programming
instructions
6.1.3.)
(
.
The MULTIcont BL-17 also allows you to reverse the
direction of motor rotation "electronically". If you wish to do
this, please follow the programming instructions
red
7.)).
(
6.1.2.).
(
6.1.4.).
(
Page 1/3
6.1.4.).