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DPSI TWIN Mini

Emcotec DPSI TWIN Mini Operating Instructions Manual

DPSI TWIN Mini Operating Instruc tions Version 1.0
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Table of Contents
1. Preface .............................................................................................3
2. Characteristics ................................................................................4
3. Properties of the DPSI TWIN Mini................................................ 11
4. Packing Contents..........................................................................16
5. Mounting Details ...........................................................................16
6. Beginning of Operation ................................................................ 25
7. Error Indications ...........................................................................26
8. Programming.................................................................................27
9. Application Examples...................................................................30
10. Safety Instructions...................................................................... 32
11. Technical Data of the DPSI TWIN Mini ...................................... 33
12. Warranty.......................................................................................34
DPSI TWIN Mini Operating Instruc tions 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 apprec iate 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 pr oduction 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
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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.
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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 Ce nter), an external LED or the DPSI LCD can be connected to the DPSI TWIN Mini.
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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.
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DPSI TWIN Mini Operating Instruc tions Version 1.0
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2.3. Connections
Rear View:
You find pin-connectors at the rear for both receivers (or r eceiver 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 16
th
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 internall y 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.
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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).
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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 th e 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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Hint:
If an external voltage is supplied to “B1” / “B2” or “opt. Bat”, the DPSI TWIN MINI must not be connected to a servo current distribution!
3. Properties of the DPSI TWIN Mini
Failsafe operation with automatic switching between two receivers with up to 16 channels each
Teacher student operation with manual switching between two receivers using a switching channel on radio
“Pilot-Backup" using two separate frequencies possible (2 transmitters, 2 receivers)
Receiver/autopilot switching for drones All control functions fully available after switching from one receiver
to the other
Failsafe positions freely programmable Integrated PC interface for reading and programming of the data
and for software updates of the firmware Data logger, i.e. important parameter of the last 22 (!) flights are
stored and can be read later by a PC
2 x 16 receiver channels Integrated bicolor LED’s indicate status of the system Two failsafe channels for evaluation of receiver function Cable free system, i.e. all connections are pluggable and therefore
replaceable
Special grounding concept for flawless operation and highest safety Future-proof concept achieved through extendibility (DPSI ICE,
DPSI LCD, DPSI Power, external sensors etc.) Each system 100% tested prior to delivery
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