Jamara Xetronic User manual

Instructions
Xetronic
GB
Ord. No.
3 A 08 1904
6 A 08 1906
12 A 08 1912
25 A 08 1925
40 A 08 1940
50 A 08 1950
Ord. No.
60 A 08 1960
70 A 08 1970
85 A 08 1985
85 A / 5 A BEC 08 1986
100 A opto 08 1900
120 A opto 08 1920

2
Contents
Safety Information
General Information
Safety Information 2
General Information 2
Certificate of Conformity 3
Disposal Instructions 3
General Description 3
Technical Details 3
Connection Diagram 4
Using Your ESC for the First Time 4/5
Programming Your ESC 5/6
Programming options 6
Problem Solving 7/8
Please be aware that at any time when a power supply (battery)
is connected to the ESC that if an electric motor is also connected
that it may begin to rotate unexpectedly. This may be due to a
technical failure, the lack of a signal if the transmitter is turned off
or simply by a Glitch. If the motor begins to spin there will be the
danger that injury may result from contact with a propeller or rotor
blades.
For this reason it is imperative that everything and everyone be kept
well away form anything connected to the motor which may begin
to rotate in the event of a failure. High Voltage/Current draw set-
ups will be particularly dangerous. The high Current Draw of which
these ESC’s are capable may also generate a large amount of heat
which could cause a fire or injury.
Xetronik controllers have been exclusively designed for operating
with battery packs and should never be connected to an AC/DC
Power Supply. Protect the ESC from vibration, dust and moisture as
well as ensuring that the unit is not exposed to extreme tempera-
tures. Always observe the battery pack manufactures recommen-
dations and regularly inspect the unit for mechanical damage. Do
not modify the unit in any way, this includes the connecting cables
which should never be lengthened.
The unit’s input cables are not protected against crossed polarity,
please observe the wiring diagram in these instructions. If the unit
is connected to a power source with the incorrect polarity, it will
be irreparably damaged. The connecting cables are colour coded
and the red cable must always be connected to the plus pole of the
battery pack and the black cable must always be connected to the
minus pole. If the engine rotates in the wrong direction, simply
change any 2 of the 3 engine connection wires. Brushless engines
should never be connected directly to a battery pack. Xetronic
ESC’s are fitted with a Safe Start system, but this should never be
relied upon and care should be taken whenever you operate the
unit.
As the company JAMARA e. K. has no influence over the use, main-
tenance or conditions under which our products will operate, we
accept no responsibility for any damage caused be it of a physical,
financial or theoretical nature. JAMARA Modelltechnik will accept
no claim against it which results directly or indirectly from the ope-
ration or use of ist products.
The following should be observed when operating the ESC:
* Never exceed the amount of cells as shown under the
section Technical Details.
* Always allow the ESC to cool down completely before
operating it again.
* Remove the battery pack from the model immediately after
use.
* Always switch the transmitter on first and then the receiver
(ESC). Switch off in the opposite order.
* Use high quality plugs and sockets to connect battery packs
and the motor.
* Ensure that the ESC is adequately cooled, never wrap it in
foam.
* The unit must not be changed or modified in any way. Doing
so will invalidate the guarantee.
Your Statutory Rights apply, any claim made against us will be based
solely on the retail price of the product, and limited to the model
only. This will not apply if we are proved to be legally responsible or
when gross negligence can be proved.

3
Certificate of Conformity
Certificate of Conformity and use in accordance with European
Directive ‘Electromagnetic Compatibility’. JAMARA hereby declare
that Xetronic ESC’s follow the regulations and requirements as well
as any other relivant directives of the EEC directive 2004/108/EG
Please direct any queries that you may have regarding conformity
to our service department at:
Jamara e. K.
Inh. Manuel Natterer
Am Lauerbühl 5
DE-88317 Aichstetten
Tel. [phone]
Fax [phone]
www.jamara.com - [email protected]
Further information can also be found at:
www.neuershop.jamara.com/Conformity
Disposal Instructions
All parts of this model should be disposed of correct-
ly, in particular electronic components may be subject
to local restrictions. Your dealer will advise you.
General Description
Technical Details
Over and above this Xetronik ESC’s boast the following features:
* Extremely low internal resistance
* Linier Throttle control
* Safe operation monitored by an accurate Temperature Sensor
* Engine switch off if the signal is lost
* Accidental engine start protection
* A wide range of features easily programmable via the well
structured Software
* Easily programmed via the Programming Card (available
separately)
By purchasing a Jamara Xetronik ESC you have chosen a High-End
Micro Processor driven Controller. These newly developed units are
based on the latest technical knowledge. As a result they are of
the latest standards and offer highest power outputs at the lowest
weight and size.
Xetronik ESC’s are fitted with a powerful BEC system which means
that even Aerobatic models fitted with high current draw servos
can be safely flown. The BEC delivers a constant voltage to the
servos, even when several servos are moving at once so they are
safe to use with 3D Helicopters.
Xetronic Electronic Speed Controllers
Type Ord. No Nominal Max. Cells Cells Weight BEC Size
Current Current NiMH/NiCd LI-ion/LiPo g mm
Xetronic 3 A 1 - 3 S 08 1904 3 A 4 A 2 - 10 NC 1 - 3 LiPo 4 1 A 12 x 17 x 4
Xetronic 6 A 08 1906 6 A 8 A 5 - 10 NC 2 - 3 LiPo 5 800 mAh 13 x 21 x 4
Xetronic 12 A 08 1912 12 A 16 A 5 - 10 NC 2 - 3 LiPo 10 5 V / 1 A 21 x 22 x 4
Xetronic 25 A 08 1925 25 A 35 A 5 - 10 NC 2 - 3 LiPo 20 5 V / 2 A 23 x 33 x 6
Xetronic 40 A 08 1940 40 A 60 A 5 - 18 NC 2 - 6 LiPo 30 5,5 V / 4 A 23 x 52 x6
Xetronic 50 A 08 1950 50 A 80 A 5 - 18 NC 2 - 6 LiPo 30 5,5 V / 4 A 23 x 52 x 6
Xetronic 60 A 08 1960 60 A 85 A 5 - 18 NC 2 - 6 LiPo 35 5,5 V / 4 A 23 x 52 x 10
Xetronic 70 A 08 1970 70 A 90 A 5 - 18 NC 2 - 6 LiPo 40 5,5 V / 4 A 23 x 52 x 10
Xetronic 85 A 08 1985 85 A 100 A 5 - 18 NC 2 - 6 LiPo 47 5,5 V / 4 A 34 x 52 x 14
Xetronic 85 A SBEC 08 1986 85 A 5 - 18 NC 2 - 6 LiPo 56 5,5 V / 5 A 34 x 62 x 14
Xetronic 100 A opto 08 1900 100 A 120 A 18 - 38 NC 6 - 12 LiPo 75 34 x 52 x 20
Xetronic 120 A opto 08 1920 120 A 150 A 18 - 38 NC 6 - 12 LiPo 125 55 x 70 x 17

The three motor connecting cables can either be soldered directly
to the motor cables or attached using high quality connectors. In
both cases ensure that all soldered joints are sound. The battery
pack must always be connected using a plug/socket system, ensure
that you use a system that protects against cross polarity and pro-
vide a safe and secure connection. The battery connection cables
must not exceed 15 cm. Please refer to the diagram below.
* Securely solder the engine cables to either the ESC or to high
quality connectors
* Solder the battery connectors securely onto the battery and ESC
* Use Heat Shrink to insulate all joints
* Plug the ESC into the receiver, ensure that it is plugged into
the throttle output of the receiver
* Check again that the battery connectors are correctly poled.
The red cable must be connected to the plus (+) pole of the
battery and the black cable to the minus (-) pole. Failure to
connect the battery will result in the ESC being irreparably
damaged, this is not covered by the guarantee. You are
responsible for correctly connecting the ESC.
4
Connection Diagram
Xetronic Controller
Battery
Receiver
Before using the ESC for the first time, check the polarity of the
battery connectors once again.
If the unit fails to activate in working mode when you operate it
for the first time you will need to calibrate the throttle stick.
If the ESC detects a problem on starting, it will indicate what the
problem is by omitting a series of bleeps.
********* A continuous tone will indicate that the throttle
stick is not in the ‘stop’ position.
* * * * A single bleep followed by a pause of one second
indicates that the voltage is outside the limits as
listed in the Technical Details.
* * * * * * A single bleep followed by a short pause indicates
that the receiver is not receiving a clean signal.
Please note that the ESC is fitted with various safety features. One
of the features is that if the internal temperature reaches more than
110°C the output power will be reduced to allow the ECS to cool
down. Ensure that the ESC is mounted in such a way that it gets
plenty of airflow around it. If the receiver receives any form of inter-
ference or fails, the ESC will also cut the power to the motor.
Calibrating the throttle stick
Before use, the ESC must be calibrated to the throttle stick. This will
‘teach’ the unit the range of the throttle channel and where the
end points are and the setting will be stored by the ESC.
To carry out this procedure take the following action:
1. Switch the transmitter on and move the throttle stick to the
full throttle position.
2. Connect the battery and wait for approximately 2 seconds
until an acoustic signal is heard. Immediately after the tone,
move the throttle stick to the ‘stop’ of low throttle position.
A tone will sound again to indicate that the unit has
registered the positions and stored them.
Operating the ESC Normally
To operate the unit normally proceed as follows:
1. Switch on the transmitter and move the throttle stick to
the low (off) position.
2. Connect the Flight pack (battery).
3. The Xetronik ESC will indicate that it is correctly connected
and has ‘armed’ itself by omitting 2 sets of acoustic signals.
The first group of signals will indicate how many cells the ESC has
detected. Three bleeps (* * *) indicate that a 3 cell pack is connec-
ted, four (* * * *) indicate a 4 cell pack and so on. The second set
of signals will tell the operator if the brake is active or not. One
bleep (*) means that the brake is active and two (* *) will indicate
that the brake is inactive.
Following theses sets of acoustic signals, the ESC is ready for use.
Using Your ESC for the First Time

5
Using Your ESC for the First Time
The ECS can be programmed by taking the following steps:
1. Switch on the transmitter and move the throttle stick to the
full throttle position.
2. Connect the flight pack (battery).
3. Wait until you hear two short tones (_ _ * *). this indicates
that the ESC in programming mode.
4. If the throttle stick is moved to the low position within 5
seconds you will hear another tone which will indicate that
the throttle stick has been re-calibrated. If the throttle stick
is not moved, a series of tones will be emitted after a short
period of time. These bleeps indicate the functions which
can be programmed, please refer to the section
‘Programming Options’.
5. Once the option which you wish to change has been reached
move the throttle stick immediately back to the low or off
position. That function will then be changed to the option
which you have chosen. The ESC will confirm you actions
by emitting two bleeps (* *).
6. When programming an Xetronik ESC only one function may
be altered each time that you access the Programming
Mode. If several functions are to be changed the flight pack
must be disconnected for at least 5 seconds after making an
alteration before you access the Programming Mode agin to
make the next change.
The easiest way to program a Xetronik ESC is to purchase a Pro-
gramming Card which is available from your dealer.
The illustration shows the Xetronik Programming Card which can
be purchased under the Part No. 08 1905 from your local dea-
ler. Please refer to the instructions included with the Programming
Card.
Important Information:
When programming your ESC it is important that you remove any
propellers or rotor blades which may be attached to the engine.
This is to prevent the possibility of injury in the event that the en-
gine starts to rotate. This precaution should also be taken the first
time that you connect your ESC to a power supply or when cali-
brating the throttle stick. Please put safety first at all times when
operating your ESC and remember that rotating parts could cause
injury or damage to you or those around you whenever you ope-
rate the unit.
Programming the ESC
Xetronik ESC’s allow many functions to be altered to allow you to
set them up to operate in a manner which best suits you and your
models.
The following programming options are open to you:
1. Braking:
The brake can be activated or deactivated. We recommend that
if you are flying a model with a folding propeller on, for
example a Hotliner, that you activate the brake. This means
that when the throttle stick is at low or off, the propeller will
stop turning and fold back to reduce resistance. If you fly a
model with a fixed prop, for example an aerobatic model, that
you deactivate the brake as this will allow th eprop to spin
when the motor is stopped.
The Brake function can be changed when four tones are heard:
Brake on/off: .. ** .. ** .. ** .. **
2. Select Battery Pack type:
The ESC can be used with either NiCad/NiMH or LiPo packs.
The amount of cells in a LiPo pack will automatically be
detected.
The ESC is factory set with a low-voltage cut off point of 3V
per cell for LiPo packs and 65% of the start voltage when
NiCad/NiMH packs are selected.
Programming Options
The Pack Cell Type can be selected when four tones are heard:
NiCad/NiMH Packs ~ ~ ~ ~
LiPo Packs ~~ ~~ ~~ ~~
3. Setting the Low-Voltage Cut Off point:
It is possible to change the cut off point to a low, medium or
high value. The unit will automatically detect the number of
cells in a LiPo pack and the ESC will cut off at the following
values:
*Low (2.8 V per cell)
*Medium (3.0 V per cell)
*High (3.2 V per cell)
This means that a LiPo pack with 3 cells when set to medium
will switch off the engine when the pack voltage drops to 9.0 V
When NiCad/NiMH packs are selected the following values
can be selected:
*Low (50% of the start voltage)
*Medium (65% of the start voltage)
*High (65% of the start voltage)
This means that if a fully charged 6 cell NiMH pack is
connected and the cut off value is set to medium that the
ESC will switch the engine off when the pack voltage drops
to 5.61 V (1.44 V/cell x 6 x 65%)
The Low-Voltage Cut Off can be altered when the following
acoustic signals are heard:
Low: *..* *..* *..* *..*
Medium: *...* *...* *...* *...*
High: *....* *....* *....* *....*

6
Programming Your ESC
4. Reset to factory settings:
The ESC can be reset to to the factory settings.
The following values will be set:
Brake: Off
Low Voltage Cut Off: 3.0 V/65%
Timing: Automatic
Soft Start: Medium
Governor Mode: Off
Tact Frequency: 8 kHZ
Throttle Down/Stop: Throttle Down
Factory Settings can be restored when following
acoustic tones are heard:
__ __ __ __
5. Setting the Timing:
The Timing for various types of motors can be selected,
one of three different timing angles can be set.
* Automatic: The ESC will automatically set the best
timing.
* Low: The timing will be set to 7-22 degrees.
This setting works best for 2 pole motors.
* High: The timing will be set to 22-30 degrees.
This setting works best for motors with
more than 2 poles.
For the majority of applications the optimal setting is Automatic.
The other settings should only be selected if the maximum output
is required from a 2 pole inrunner (Low) or a multi poled out-runner
(high). Please observe you engine manufactures recommendations
and always test the set up on the ground before flying the model.
The Timing can be set when the following acoustic
signals are heard:
Automatic: _ _ _ _
Low: -- -- -- --
High: --- --- --- ---
6. Soft Start value:
There are 3 different Soft Start setting which can be
set:
* Very Soft Start: With this setting the ESC will take
app. 1,5 sec. until the engine is running at full RPM.
Ideal for Helicopters and geared set-ups.
* Soft Start: With this setting the ESC will take
app. 1 sec. until the engine is running at full RPM.
Ideal for Helicopters and geared set-ups.
* Hard Start: With this setting the ESC will
immediately follow the throttle stick giving full power to the
engine. This setting is recommended for competition models
with a robust direct drive set-up.
Soft Start can be set when the following acoustic signals
are heard:
Very Soft Start: W W W W
Soft Start: V V V V
Hard Start: VVV VVV VVV VVV
7. Configuring the Governor Mode:
This mode offers 3 different settings:
* Governor Off: The motor RPM follows the throttle stick
movement.
* Step 1: The selected RPM will be reached after app. 5
sec. If the motor is than switched off, it will then revert
to normal mode.
* Step 2: The selected RPM will be reached after app. 15
sec. If the motor is than switched off, it will then revert
to normal mode.
Note:
Selecting Governor mode will affect the Brake and Low
voltage Cut Off settings.
Governor Mode can be selected when the following
acoustic tones are heard:
Governor Off: -*- -*- -*- -*-
Step 1: -**- -**- -**- -**-
Step 2: -***- -***- -***- -***-
8. Changing the Direction of Rotation:
The direction in which the motor rotates can be changed
by either swapping any 2 of the 3 motor connecting wires
or by using the ESC’s software.
The Rotation can be changed when the following acoustic
tones are heard:
Clockwise/Anticlockwise: W W W W
9. Setting the Tact Frequency:
It is possible to choose between 2 Tact Frequencies:
8 KHz: Suitable for 2 Pole in-runners
16 KHz: Suitable for multi pole out-runners
The unit is factory set to 8 KHz as this will make the
motor run quietly and smoothly. The frequency can be
changed when the following acoustic signal is heard:
8 Khz: // // // //
16 Khz: \\ \\ \\ \\
10. Throttle Down:
When the pack voltage drops to the level set as the Low
Voltage Cut Off point the unit can be programmed to either
switch the motor off or to reduce power. The Throttle Down
mode can be set when the following acoustic signal is
heard:
Throttle Down: _ - _ - _ - _ -
Switch Off: - _ - _ -_-_

7
Trouble Shooting
Despite the wide ranging safety features which we have equipped our Xetronic ESC’s with, it is possible that problems may from time to time
arise. The table below lists the most common faults, their probable cause and the solution. In the unlikely event that your ESC fails to func-
tion, please refer to the list below and try any solutions offered. In most case this will in most cases enable you to get your unit working again
without having to send it back to us for repair.
Problem
The motor fails to turn although the signal
indicating the number of cells is heard on
connecting
The motor fails to turn and no acoustic
signal is heard. Furthermore, the servos
fail to operate
The motor fails to turn and the acoustic
signal to indicate the number of cells is
not heard. The servos operate
The motor fails to turn and a warning
tone consisting of 2 bleeps followed
by a short pause is heard
(** ** ** ** **)
The motor fails to turn and a warning
tone, 1 bleep followed by a short pause,
will be heard
(* * * * *)
The motor fails to turn and a warning
tone, a continuous tone, will be heard
(**********)
The motor fails to turn and a warning
tone, two long bleeps followed by two
sort bleeps, will be heard
(- - * *)
The motor turns in the wrong direction
The motor cuts out in the air
Cause
The Xetronik ESC is not calibrated
Poor or no contact with the Flight pack
Discharged or faulty flight pack
Damaged or incorrectly connected cables
Receiver cable damaged or incorrectly
inserted
Damaged ESC
Poor connection between the ESC
and the motor
Damaged Motor
Poor soldered joints between the
ESC and the motor
Flight pack has too many or too few
cells
The receiver is not receiving a clean
signal
The throttle stick is not in the low (off)
position
The throttle channel is reversed
Incorrect motor polarity
No signal to the receiver
Flight pack is discharged
Poor conections
Solution
Calibrate the unit so that it stores the
end points and travel of the throttle stick
Check the connection to the
flight pack
Fit a freshly charged pack
Check the flight pack connecting
cables
Check the receiver plug, connecting
cable and polarity
Exchange the ESC
Check the connection between the ESC
and the motor
Exchange the motor
Check the soldered joints between
the motor and the ESC
Select a battery pack within the range
shown in the Technical Specifications
Check the receiver cable, the receiver
and the throttle function of the sender.
Test the throttle function by fitting a
working servo
Move the throttle stick to the off (low)
position
Use the servo reverse function on your
transmitter to reverse the channel
Note: Futaba transmitters will have to
have the throttle channel reversed
Swap any 2 of the 3 motor connecting
cables or use the software to change
the rotation
Test the complete system, including the
transmitter, the receiver, the connecting
cable and also ensure that no one else is
on your channel. Fit a Ferrite ring to the
receiver cable
Land immediately and fit a fresh battery
Check all cables and connections

All rights reserved.
Copyright JAMARA e. K. 2014
Copying or reproduction in whole or part,
only with the expressed permission of JAMARA e. K.
JAMARA e.K.
Inh. Manuel Natterer
Am Lauerbühl 5 - DE-88317 Aichstetten
Tel. [phone] - Fax [phone]
[email protected] www.jamara.com
Trouble Shooting
Problem
Motor fails to turn after the ESC has
switched off after over heating
Cause
Ensure that your channel is not in use
Your ESC not sufficiently cooled
Your servos draw too much current and
are overloading the BEC system
The propeller is too large and is over-
loading the ESC
Solution
Test the model on the ground. If your
channel is free and the interference
persists move to another flying site
Improve your ESC’s cooling
Test that all servos and linkages move
freely. Check that the servos do not
draw more current than the ESC can
supply. If all of this fails, use a
separate receiver battery, if you do
this the red (+) cable must be removed
from the ESC and insulated
Only use propellers that do not draw more
current than the ESC can supply as shown
in the Technical Details