GRAUPNER GR-18, GR-24PRO User Manual
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Revize: D ecember 2013
PŘIJÍMAČ GR-18 3xG+3A+Vario & GR-24PRO 3xG+3A+3M+Vario
RECEIVER GR-18 3xG+3A+Vario & GR-24PRO 3xG+3A+3M+Vario
NÁVOD K POUŽITÍ
MANUAL
Obj. číslo: 33579
Order No: 33579
www.modellmarkt24.ch; www.modellmarkt24.de
Obj. číslo: 33583
Order No: 33583
CHAPTER PAGE
Safety Notes
1
Functions
2
2.1. Binding
2.1.1. Binding Multiple Receivers
2.2. Fail-Safe Function
2.3. Range-checking
2.4. Installation in the model (airplane)
2.5. Installation in the model (heli)
Receiver
3
3.1. Connections
3.2. Receive r set-up menu
3.3. Free mixe rs
3.4. Assignin g the gyro axes
3.5. Adjust S ervolimit for chann els
Programming the gyro settings
4
4.1. Programming PID correction
4.2. Program ming the factors
4.2.1. Programming, transmi tter with proporti onal controls
4.2.2. Programming, transmitter without proportional controls
4.3. Initialising the gyro
Firmware Update
5
Declaration of Conformity
6
Manufacturer’s declaration
7
Environmental protection notes
8
Warranty
CONTENTS
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Thank you for purchasing the Graupner HoTT 2.4 System Please read through
this entire manual before you attempt the installation
and usage of your Graupner HoTT 2.4 System!
These operating instructions are part of this product. They contains important notes to the operation and handling. Please
take this into consideration when you pass on the product to third parties. Neglect of the operating instructions and the safety
instructions lead to expiring the warranty. Graupner constantly work on the advancement of all remote control systems;
changes of the s cope of delive ry in form, te chnology an d equipment we m ust reserve o urselves the refore. Please h ave understan ding
for the fact that from data and illustrations of this operating instructions no requirements can be derived.
Please keep the se instructions for fur ther reference!
APPROVED USAGE
The receiver is intended exclusively for use in radio -controlled models. Any other usage is prohibited, and may result in
damage to the receiver or model, and serious personal injury. We grant no guarantee and accept no liability for any t ype
of use outside the stipulated range.
Not suitable for children under fourteen years. This receiver is not a toy!
The receiver is also equipped with a telemetry function which is only available in combination with a Graupner/SJ HoTT
2.4 system. If you do not own a Graupner/SJ HoTT 2.4 system, the receiver will not work.
Please start by reading through the whole instructions before you attempt to install and operate the receiver.
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These operating instructions are an integral part of the product. They contain important notes on operating and handling
the receiver. For this reason please store the operating instructions in a safe place, and pass them on to the new owner
if you ever dispose of the product. Failure to observe the operating instructions and safet y notes invalidates
the guarantee.
Here at Graupner we are constantly working on the fur ther development of all our products; for this reason we are obliged
to reserve the right to introduce changes to the set contents in form, technology and features.
Please understand that we will not countenance claims resulting from information and illustrations in these operating
instructions.
Please store the operating instructions in a safe place for future reference!
1. SAFETY NOTES
KEY TO THE SYM BOLS
Caution!
This symbol alerts you to prohibited actions which must be observed at all times. Any failure to observe the prohibited
action indicated in this way may prevent the equipment working, and endanger the safety of the operator.
Caution!
This symbol alerts you to information which must be observed at all times. Any failure to observe the information
indicated in this way may prevent the equipment working properly, and endanger the safety of the operator.
This symbol indicates information which should always be observed in order to ensure that the equipment operates
reliably.
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SAFETY NOTES
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Warning!
The receiver must never be operated under the inuence of medication, alcohol, drugs etc.
Caution!
Any deviation from the instructions may have an adverse eect on the function and operational security of the receiver,
and must be avoided under all circumstances.
Caution!
The operator bears full responsibility for using the receiver. The only way to guard against
personal injury and property damage is to handle the equipment carefully and use it exactly as recommended.
Caution!
Not suitable for children under fourteen years.
Caution!
Protect the receiver from dust, soiling, damp and foreign bodies. Never subject the receiver to excessive vibration, heat
or cold.
Caution!
During the programming process you must bear in mind that an internal combustion engine or electric motor could
unexpectedly burst into life at any time.
Caution!
Avoid subjecting the receiver to shocks and pressure. Check the receiver regularly for damage to the case and cables.
Do not re-use a receiver which is damaged or has become wet, even after it has dried out again.
Caution!
When deploying the cables ensure that they are not under tension, not tightly bent (kinked) or fractured. Avoid sharp
edges which could damage cable insulation.
Caution!
Ensure that all plug-in connections are rmly seated. Do not pull on the wires when disconnecting plugs and sockets.
Caution!
The receiver must not make physical contact with the model’s fuselage, hull or chassis, as this would allow motor
vibration and landing shocks to be transferred directly to it.
Caution!
It is not permissible to carry out modications of any kind to the receiver. Any changes invalidate product approval, and
you forfeit any insurance protection.
Caution!
Ensure that the equipment is working correctly and at full range before every ight. Check the state of the batteries at
regular intervals.
Note!
Ensure that all your HoTT components are loaded with the current version of the software at all times.
Note!
Safety is no accident, and radio-controlled models are not playthings!
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GENERAL NOTES
• The receiver’s integral gyros are very fast, high -resolution components. This means that you should always use
high-speed digital servos wherever possible, so that the gyro’s corrective signals are converted directly and accurately
into servo movement; this helps to prevent the model oscillating.
• Keep all servo extension leads as short as possible.
• When switching on or adjusting the radio control system, it is essential to keep the transmitter aerial at least 15 cm
from the receiver aerial(s). If the transmitter aerial is too close to the receiver aerials, the receiver will be swamped
and the red LED on the receiver will light up. The transmitter responds with a ashing red LED and repeated beeps at
approximately one-second inter vals, i.e. the radio control system reverts to fail-safe mode. If this should happen,
increase the distance until the audible warning ceases, and the blue transmitter LED lights up constantly once more.
The red LED on the receiver should now be o.
2. FUNCTIONS
2.1. BINDING
The Graupner/SJ HoTT 2.4 receiver must be “bound” to “its” Graupner/SJ HoTT 2.4 RF module (transmitter) before a radio
link can be created between them; this process is known as “binding”.
Binding is only necessar y once for each combination of receiver / RF module, so the binding procedure described below
only needs to be repeated if you add more receivers. However, binding can be repeated at any time if you wish;
for example, if you switch transmitters.
This is the procedure in detail
• Binding is only possible if the receiver has not been linked with a bound transmitter since being switched on (red LED
lights); press the SET button to set the receiver to BIND mode.
• If you have already bound a receiver to the transmitter, and wish to bind the receiver to a new model memory, this is
the procedure:
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• Switch the transmitter’s RF section o in the “Basic model settings” menu.
• Switch the receiver on, and press the SET but ton to set it to Bind mode.
• Initiate binding in the transmitter’s “Basic model settings” menu.
• The red receiver LED should go out within about ten seconds. If it does, the binding process has been completed
suc cessf ully.
• Your transmitter / receiver combination is now ready for use.
• However, if the red LED continues to glow, then the binding process has failed. If this should happen, repeat the whole
procedure.
2.1.1. BINDING MULTIPLE RECEIVERS PER MODEL
If necessary it is also possible to bind more than one receiver to a par ticular model. First bind each receiver individually as
described earlier.
When the system is actually in use, the receiver which was last bound acts as the Master unit, and any telemetr y sensors
installed in the model must be connected to this receiver, as only the Master receiver transmits the data to the ground
using the downlink channel. The second - and any other - receivers operate in Slave mode, in parallel with the Master
receiver, with the downlink channel switched o.
The channel mapping function of HoTT telemetr y also allows the control functions to b e divided up amongst multiple
receivers, or alternatively the same control func tion to be assigned to multiple receiver outputs. For example, this is useful
if you wish to actuate each aileron with two servos instead of just one.
2.2. Fail-Safe FUNCTION
In the receiver’s default state, all connected ser vos remain in their last valid position (“Hold” mode) if a fail-safe situation
should arise. In fail-safe mode the red LED on the receiver lights up, and the transmitter generates an audible alert by
beeping at a rate of around one per second.
You can exploit the safety potential of this option by at least setting the throttle position (for internalcombustion
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powered models) to Idle, or the motor function (electric-powered models) to “Stop”, or “Hold” for a model helicopter,
if a fail-safe event should occur. These settings ensure that the model is less likely to y out of control if interference
should occur, thereby helping to avoid property damage or even personal injury.
Read the operating instructions supplied with your radio control system for more details.
The gyro system remains active in a fail-safe situation.
2.3. RANGE-CHECKING
The range of your Graupner/SJ HoTT 2.4 system can be checked as described in the following instructions. We recommend
that you ask a friend to help you with the procedure.
Ideally the receiver should already be bound to the transmitter. Install it in the model in its nal p osition.
• Switch the radio control system on, and wait until the red LED on the receiver goes out. The servo movements can now
be observed.
• Place the model on a at surface (pavement, close-mown grass, earth), and ensure that the receiver aerials are at least
15 cm above the ground. It may be necessary to pack up the model to achieve this for the period of the range-check.
• Hold the transmitter away from your body at hip-level. Don’t point the transmitter aerial straight at the model; instead
rotate or angle the aerial tip in such a way that it is vertical when you operate the transmit ter controls.
• Select range-check mode, as described in the transmitter instructions.
• Walk away from the model, moving the transmitter stick s. If you detect an interruption in the radio link at any time
within a distance of about 50 m, see if you can reproduce the problem.
• If your model is tted with a motor or engine, switch it on or start it, so that you can check eective range when
potential interference is present.
• Walk further away from the model to the point where full control is no longer possible.
• At this point you should manually switch o range-check mode.
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The model should now respond to the controls again. If this is not 100% the case, do not use the system. Contact the
Graupner/SJ Service Centre in your locality and ask their advice.
We recommend that you carry out a range -check before every ight, simulating all the servo movements which occur in
ight. To guarantee reliable model operation, radio range must always be at least 50 m on the ground.
2.4. INSTALLATION IN THE MODEL (AIRPL ANE)
The gyro receiver must be installed straight and at right angles to aircraft longitudinal axis, so that the rotors can work as
intended, because of the accelerometer in addition also horizontal to the longitudinal axis.
OK
OK
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2.5 INSTALLATION IN THE MODEL (Heli)
The receiver has to be aligned strictly at right angles and parallel to the oor on the receiver platform on the helicopter.
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3. RECEIVER
3.1. CONNECTIONS
Connect the servos to the row of sockets on one end of the receiver. The connectors are polarised: note the small chamfers
on one side. Never use force - the connectors should engage easily. The polarity is also printed on the receiver;
the negative wire (-) is brown, the positive (+) red and the signal orange.
The servo sockets of Graupner/SJ HoTT 2.4 receivers are numbered sequentially. The socket for channel 6 can also be
programmed to deliver a (digital) sum signal (see section 3.2: Receiver set-up).
I²C (Inter-Integrated Circuit) - socket currently not active; for servicing purposes only!
Power supply
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