Emcotec DPSI TWIN Mini Manuale utente
DPSI TWIN Mini Operating Instructions Version 1.0
Page 2 of 36
Table of Contents
1. Preface .............................................................................................3
2. Characteristics ................................................................................ 4
2.1. Functional Description.............................................................4
2.2. Safety Considerations & Quality..............................................6
2.3. Connections.............................................................................8
3. Properties of the DPSI TWIN Mini................................................11
3.1. Data Logger...........................................................................12
3.2. Functional Principal of the Switching.....................................13
4. Packing Contents..........................................................................16
5. Mounting Details ...........................................................................16
5.1. Mounting of the DPSI TWIN Mini...........................................16
5.2. Connecting the Receiver .......................................................17
5.3. Arranging the Antennas.........................................................18
5.4. Current Supply and Servo Connections ................................19
5.5. Failsafe Channel....................................................................25
6. Beginning of Operation ................................................................25
7. Error Indications ...........................................................................26
8. Programming.................................................................................27
8.1. Firmware-Update...................................................................29
9. Application Examples...................................................................30
10. Safety Instructions......................................................................32
11. Technical Data of the DPSI TWIN Mini ......................................33
12. Warranty.......................................................................................34
DPSI TWIN Mini Operating Instructions Version 1.0
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1. Preface
With the DPSI TWIN MINI you purchased a high grade, modern and
secure product for your valuable radio controlled model. We appreciate
your trust and assure you that you made the right choice!
Long lasting experience for years in development and manufacturing of
electronically systems as well as the knowledge of the world’s best
model airplane pilots has influenced the development of the DPSI
TWIN MINI systems. All products are manufactured at EMCOTEC
GmbH in Germany on our own production line. Extensive optically and
electronically end tests for every system, which leaves our house,
assure that you, our customer, acquire an absolute reliable product
which considerably increases the reliability of your valuable RC-Model.
Of course, the DPSI TWIN MINI not only has been tested extensively
in the laboratory, but also went through intensive flight-testing. Like
done in the automobile industry an FMEA (failure mode and effect
analysis) reduces the possibility of damage and malfunction on
operating errors to a minimum.
Hint:
We kindly ask you to read these instructions carefully and to observe the
installation hints. Thus, errors can be avoided in advance.
We are all ears for your wishes and questions. Challenge us!
Bobingen, September 2007
The Staff of EMCOTEC GmbH
DPSI TWIN Mini Operating Instructions Version 1.0
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2. Characteristics
2.1. Functional Description
The DPSI TWIN Mini provides a kind of ”Receiver diversity“. Two
receivers can be connected. The receiver with undisturbed radio
reception provides for the servos signals. If this receiver fails, the
signals for the servos are provided from the other undisturbed receiver
by automatic switch over. Therefore, the model remains fully
controllable if a receiver fails. In summary, 16 channels are switched
completely. The DPSI TWIN Mini can be operated stand-alone or in
conjunction with the battery-switches from then EMCOTEC’s DPSI
product range.
Several applications are possible with the DPSI TWIN Mini:
1. Failsafe-Function “A“:
(Two identical receivers using same frequency)
If one receiver fails, all (!) servos are switched to the second receiver.
The pilot can continue his flight without disturbances or adverse
effects. The receivers should feature a failsafe function (e.g. PCM).
Even by using two PPM (or IPD) receivers without failsafe capability,
switching of the servo signal can occur caused by a disturbed (or
missing) servo signal.
2. Failsafe- Function “B“:
(Two receivers using different frequencies, e.g. using the EMCOTEC HF TWIN)
If one receiver fails OR channel double-allocation occurs, all servos are
switched to the second (backup) receiver.
3. Pilot-Backup:
(Two receivers and two transmitters using different frequencies)
If the receiver OR the transmitter of the pilot fails, all servos are
switched to the second (backup) pilot. He can then land the model
safely.
DPSI TWIN Mini Operating Instructions Version 1.0
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4. Teacher-Student-Function:
(Two receivers and two transmitters using different frequencies)
The teacher switches between his and the students radio back and
forth by using a switching channel of his transmitter. The student can
now take over all functions of the model with his transmitter (passing
single functions to the student are not possible). The teacher can gain
full control with one single switching event in critical situations.
Herewith, each model-pilot can fly his friend’s model (which has
installed the DPSI TWIN MINI) with his own radio using his own stick
assignment. He just must program the model parameters into his radio.
5. Autopilot for Drones (UAV´s):
(Regular remote radio control and an autopilot)
The pilot switches between the receiver and the autopilot by using a
switching channel on his radio. The drones therefore can takeoff and
land under control of a regular remote control and be switched to the
autopilot on demand to fly its corresponding program.
Additional Functions:
Additionally, the DPSI TWIN Mini works as data logger, i.e. all
operation relevant data of the last flight are stored in non volatile
memory. The data can be read by a PC afterwards. The cause of an
eventual crash (failsafe signals, number and duration of receiver
disturbances) can be evaluated from the stored information.
Two built in bicolor LED’s indicate optically the operational state of the
DPSI TWIN Mini. In order to receive additional information about the
status of the entire system, the optional DPSI ICE (Information Center),
an external LED or the DPSI LCD can be connected to the DPSI TWIN
Mini.
DPSI TWIN Mini Operating Instructions Version 1.0
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2.2. Safety Considerations & Quality
Exclusively highly modern electronically parts are used in the DPSI
TWIN Mini. Electronics are built in as safe as possible in all areas of
the product. All vendor parts such as PCB’s, cables, connectors, etc.
are provided by German companies. The elaborated manufacturing of
the housing provides for best EMC safety, which is especially important
for drones usage. The 4-multilayer PCB allows for highest packing
density and therefore for smallest dimensions and low weight.
Maximum safety is also guaranteed by elaborated software quality
assurance. Individual measuring systems were developed for
qualification, which were used for signal conditioning and analysis.
Thinking about quality continues all the way through manufacturing.
Each step in production is monitored and each system is tested for all
its functions before leaving the house.
Quality over Quantity!
Hint:
The following parameters are factory programmed:
Operating Mode: Failsafe
Fail-Position = 1200µs (ca. –75% of Servo Channel)
Pass-Position = 1800µs (ca. +75% of Servo Channel)
If other parameters are desired, programming is in order (see programming
instructions). The default values best correspond to the +100% and -100%
settings of the failsafe channel of the receiver. Reprogramming of these values is
therefore not mandatory.
DPSI TWIN Mini Operating Instructions Version 1.0
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DPSI TWIN Mini Operating Instructions Version 1.0
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2.3. Connections
Rear View:
You find pin-connectors at the rear for both receivers (or receiver and
autopilot). There are 16 connectors each for the “main”-receiver as well
as 16 connectors for the “backup”-receiver or autopilot respectively.
The connectors are JR/UNI compatible.
The 16th connector functions as the failsafe-input at the same time
(“FS1” or “FS2”). The failsafe signals of the connected receivers are
evaluated by the DPSI TWIN Mini internally for switch-over. As long as
the signals value is larger than 75% (percentage of the corresponding
servo channels) the receiver is considered error free. As soon as the
signal drops down to less than 75%, the DPSI TWIN Mini recognizes
an error condition (failsafe) and switches all 16 servo signals to the
error free receiver.
DPSI TWIN Mini Operating Instructions Version 1.0
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If the failsafe pulses are totally missing or are out of specification, this
is recognized as an error condition too. The 75% values are factory set
and can be reprogrammed at any time.
The receivers are connected to the DPSI TWIN Mini using the
accompanying patch cables.
Hint:
Both connected receivers are supplied by the DPSI TWIN MINI via the patch
cables. The battery connectors of the receivers ALWAYS remain unused!
Front View:
You find the pin connectors of the outputs in the upper row
(connections to servo current distribution or to the servos directly).
DPSI TWIN Mini Operating Instructions Version 1.0
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When using a DPSI RV system the patch cables are here connected to
the DPSI. Servos can be directly connected if an optional current
supply is available.
You find in the lower row (from left to right):
AUX1 and AUX2: here, optional products from the EMCOTEC product
range can be connected (LC display, bridging PCB for the DPSI power
part, external sensors for RPM, temperature, height, velocity, etc.).
B1 and B2: connection for the optional DPSI ICE. Furthermore, an
external power supply can be connected, if the DPSI TWIN Mini is to
be used stand-alone (without current distribution), i.e. the servos are
directly connected. For instance, a DPSI BIC, a DPSI LR or a DPSI
Micro can be used as power supply.
EXT: connection for an optional external bicolor LED, which can be
mounted in the fuselage’s sidewall, providing information about the
current status of the DPSI TWIN Mini (see error indications).
COM: connection for the RS232 interface cable to a PC (COM
interface) or using an optional USB convert on an USB port of the PC.
Using the PC software, the parameters of the DPSI TWIN Mini can be
programmed and the data logger can be read. Furthermore, new
firmware can be downloaded.
Opt. Bat: here, an external power supply can be connected if the DPSI
TWIN MINI is being used in the stand-alone version and if the servos
are directly connected. If many servos are to be used, this connection
is to be preferred over the B1 B2 connections. 15A continues current is
possible. The external power supply can be an optional DPSI power
part (contacting a bridging PCB) or a current source ranging from 4.8
volts up to 8.4 volts. Servos and receivers are supplied with this
voltage. Voltages of 5.2 volts up to 6.0 volts are reasonable.
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