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Fault:
The receiver LED remains off when the unit is switched on
(LED Code 0
8.1).
Cause:
The operating voltage (battery voltage) is too low.
Remedy:
•
Charge the receiver battery or flight battery, or replace it with
a charged pack.
8.4 HOLD and FAIL-SAFE
If the receiver detects invalid data (interference), the last valid
data is sent to the servos in order to bridge the period of signal
loss (HOLD mode).
The effect of the FAIL-SAFE setting is that the servos run to a
previously selected setting if interference should occur, once the
HOLD period (0.75 seconds) has elapsed.
In its default state and after a RESET the FAIL-SAFE function is
switched OFF, and is only activated when you select the FAIL-
SAFE settings for the first time. FAIL-SAFE is set using the SET
button on the receiver.
! Note: if you are using a COCKPIT SX M-LINK or ROYALevo
/ pro / M-LINK transmitter, you can also set FAIL-SAFE directly
from the transmitter.
If you wish to disable FAIL-SAFE again, the receiver must be
reset to the default state (RESET
must repeat the binding procedure (
! Note: always activate FAIL-SAFE!
For safety reasons we recommend that you always activate
FAIL-SAFE, and ensure that the selected FAIL-SAFE settings
will cause the model to take up as safe an attitude as possible
(e.g. motor idle / electric motor OFF, control surfaces neutral,
landing flaps deployed, tow-release open, ...).
Selecting the FAIL-SAFE settings:
Use your transmitter to move all the servos (and the speed
controller) to the desired position. Hold the SET button pressed
in briefly (0.5 to 1 second). This stores the servo positions, and
the LED flashes to confirm this (LED code 5
After sixteen seconds in FAIL-SAFE the receiver no longer
sends signals to the servos. Analogue servos and some digital
servos (see instructions) then become "soft", to avoid them
being stalled. Modern speed controllers switch themselves off.
However, some digital servos remain "hard" and maintain their
last position.
FAIL-SAFE mode is automatically terminated as soon as the
receiver picks up valid signals again.
Testing the FAIL-SAFE positions:
Move the sticks to positions other than the FAIL-SAFE settings,
and then switch the transmitter OFF: the servos should go into
HOLD mode briefly (0.75 seconds), and then move to the FAIL-
SAFE positions which you previously selected.
The FAIL-SAFE positions must always be checked and updated
when necessary, e.g. when you install the receiver in a new
model.
! Checking the FAIL-SAFE function:
Never operate the receiver with the transmitter switched off for
longer than it takes to check the FAIL-SAFE function. Caution:
the motor could burst into life - injury hazard!
8.5 RESET to default settings
The receiver settings can be reset to the factory default values if
you wish. If you do this, please note that all your settings (e.g.
bound transmitter, FAIL-SAFE settings) will be lost.
Operating Instructions RX-6-DR light M-LINK /
RX-7-DR light M-LINK 2.4 GHz receiver
8.5). After a RESET you
8.2.1)!
8.1).
Page 9
Hold the SET button pressed in for at least ten seconds (as a
guide, the LED goes out when you press the button, comes on
again after two seconds, then off again after ten seconds).
When the RESET is complete, the receiver LED will flash to
confirm the action (LED code 5
9.
I
NSTALLATION
• Protect your receiver from vibration, especially in models
powered by an internal-combustion engine (e.g. pack it
loosely in foam).
• Locate the receiver at least 150 mm away from electric mo-
tors, petrol engine ignition systems and any other electronic
components such as speed controllers for electric motors and
drive batteries. Do not route the aerials close to these compo-
nents.
• Install the receiver in the model in such a way that both
aerials are as far away as possible from any electrically con-
ductive material, and are arranged at 90 ° to each other. Posi-
tion the two aerial tips as far from each other as possible.
• If the model's fuselage contains conductive material (e.g.
carbon fibre), the aerials must be installed in such a way that
the active part of the aerial (approximately the last 30 mm) is
located outside the model.
• Never shorten or extend the aerials or their feed cables!
• Do not deploy the aerials parallel to servo leads, high-current
cables or electrically conductive parts (e.g. pushrods).
• Do not deploy the receiver aerials inside or on model com-
ponents which are laminated or reinforced with electrically
conductive materials (metal foil, carbon fibre, metallic paints
etc.), as they have a shielding effect.
• Note the recommended installation scheme (
A - C)!
• High-current cables, e.g. those attached to the speed con-
troller, motor and flight battery, should be kept as short as
possible.
• If you are using a diode-based battery backer, always install a
PeakFilter (# 8 5180).
• Reception quality can be optimised by fitting a special ferrite
ring (# 8 5146) or suppressor filter lead (# 8 5057) in the speed
controller cable. It is also advisable to fit effective suppressors
to conventional (brushed) electric motors (not brushless types)
(e.g. use the suppressor set # 8 5020).
10. R
C
ANGE
HECKING
Regular range checks are very important - even when using a
2.4 GHz system - in order to ensure reliable operation of the
radio control system, and to enable you to detect sources of
interference in good time. This applies in particular:
• Before the use of new or changed components, or existing
components in a new or modified arrangement.
• Before re-using radio control system components which were
previously involved in a crash or a hard landing.
• If you have encountered problems on a previous flight.
Important:
• Always ask a second person to help you with your range
check, so that one of you can secure and observe the model.
• If possible, carry out the range check when no other trans-
mitters are operating.
Carrying out the range check:
1. Select "Range check" mode on your transmitter (see the
operating instructions for the M-LINK transmitter or the
8.1).
N
OTES
14., sketches
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