Emcotec DPSI TWIN Mini Bedienungsanleitung

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

Page 7 of 36

DPSI TWIN Mini Operating Instructions Version 1.0

Page 8 of 36

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

Page 9 of 36

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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