User's Manual

100
Digital trims
Digital trims and stick calibration
Description of function
Digital trims with visual and audible indicators
Both the dual-axis stick units are fi tted with digital trim
systems. When you give the trim lever a brief push (one
“click”), the neutral position of the associated stick chan-
nel changes by one increment. If you hold the trim lever
in one direction, the trim value changes continuously in
the corresponding direction with increasing speed.
The degree of trim offset is also “audible”, as the pitch of
the tone changes to refl ect the setting. When you are fl y-
ing a model, you can fi nd the trim centre position easily
without having to look at the screen: if you over-run the
centre setting, the trim stays in the centre position for a
moment.
The current trim values are automatically stored.
The digital trim only works when the transmitter is swit-
ched ON. When switched OFF, even an accidental touch
of the trim lever does not change the set values.
Stick Calibration
If you suspect that the centre point of your self-centring
sticks (transmitter controls 1 … 4) does not correspond
exactly to 0% travel of the transmitter control, you can
check and - if necessary - correct it using the following
procedure:
Turn OFF the transmitter, and insert the supplied pro-
gramming plug into the DATA jack on the back and the
jumper in position „DELTA“ on the front of the transmit-
ter. Bring both sticks in the middle position. Turn the ra-
dio ON. The transmitter starts beeping after one second
for 10 seconds once per second. During this 10 seconds
move both control sticks to all the end positions, so that
the transmitter can save this positions. After expiration
of the 10 seconds the calibration is completed and
the transmitter is back in the normal mode, the beeps
become silent. Turn the transmitter off and then remove
the programming plug on the back.
Do not use the remote control with programming
connector plugged in!
If necessary, plug the jumper into the correct positi-
on for your model.
If you have achieved not all stick-end positions during
these 10 seconds, repeat the entire process.
109
Program description: base settings - helicopter
Notes:
During the programming process it is important •
to ensure that any internal-combustion engine or
electric motor cannot start running accidentally.
The safe option is always to disconnect the fuel
supply or the fl ight battery.
Flybarless systems
Connect your Flybarless system on the channels 1 - 4 at
the receiver to match your Helicopter type.
Please refer to the instructions of your system.
Receiver output
For maximum fl exibility in terms of receiver socket
assignment, the optional Smart-Box provides the means
to swap over the servo outputs 1 to max. 6 - „channel
mapping“; see also chapter „telemetry“ on page 113.
With the Channel mapping function of the Smart-Box
the six control functions of the mx-10 HoTT trans-
mitter can be shared out between several receivers if
necessary, or alternatively several receiver outputs can
be assigned to the same control function; for example,
you may wish to be able to operate each aileron with
two servos, or to control an oversized rudder using two
coupled servos instead of a single one.
rx bind
Graupner HoTT receivers have to be “instructed” to
communicate exclusively with a particular model (i. e.
model memory) of a Graupner HoTT transmitter. This
process is known as “binding”, and is only necessary
once for each new combination of receiver and model. It
can be repeated at any time.
Important note:
When carrying out the binding procedure, please
ensure that the transmitter aerial is always an
adequate distance from the receiver aerials: keeping
the aerials about 1 m apart is safe in this respect.
Otherwise you risk a failed connection to the down-
link channel, and consequent malfunctions.
“Binding” multiple receivers to one model
If necessary, it is possible to bind more than one recei-
ver to a single model. This is accomplished by initially
binding the receivers individually, as described in the
next section. When operating the system, please note
that only the receiver which was bound last will
establish a telemetry link to the transmitter. For this
reason all telemetry sensors installed in the model must
be connected to this receiver, since only the last bound
receiver is able to transmit their data via the down-link
channel. The second, and all other receivers, run in
parallel to the receiver last bound to the transmitter, but
completely independently of it; they operate in Slave
mode with the down-link channel switched off.
If a receiver is switched ON which does not transmit te-
lemetry, the Status-LED changes from orange to green.
33110_mx10_HoTT_1_DE.indd Druckbogen 100 von 104 - Seiten (100, 109)
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21.10.2011 13:25:43
21.10.2011 13:25:43