Emcotec RC Electronic DPSI RV User manual
Operating Instructions
DPSI RV Family Operating Instructions Version 2.0
Page 2 of 48
DPSI RV Family Operating Instructions Version 2.0
Page 3 of 48
Contents
1. Foreword..........................................................................................4
2. Features ...........................................................................................6
3. The DPSI RV-Family in Headwords.............................................11
3.1. HFIB (High Frequency Interference Blocking).......................13
3.2. APP (Advanced Push Pull Servo Pulse Amplification)..........13
3.3. IVM (Intelligent Voltage Monitoring).......................................14
3.4. Safety Features of the DPSI RV Systems.............................14
4. Packing Contents..........................................................................16
5. Installation Instructions and Programming................................17
5.1 Installing the DPSI RV............................................................17
5.2. Hole spacing for Fastening....................................................19
5.3. Connecting the Switch transmitter.........................................20
5.4. Connecting the Receiver .......................................................23
5.5. Selecting the Batteries...........................................................25
5.6. Soldering the Battery Connectors..........................................28
5.7. Charging the Batteries...........................................................29
5.8. Setting the Voltage ................................................................30
5.9. Programming of the Batteries................................................32
5.10. Connecting the Servos ........................................................35
5.11. Connecting Accessories......................................................37
5.12. EMCOTEC Filter Capacitor .................................................38
6. Operation ....................................................................................... 39
7. Error Indication .............................................................................40
8. Safety Instructions........................................................................42
9. Technical Data of the DPSI RV-Systems..................................... 44
10. Warranty.......................................................................................46
DPSI RV Family Operating Instructions Version 2.0
Page 4 of 48
1. Foreword
With the EMCOTEC DPSI RV (Dual Power Servo Interface –
Regulated Voltage) you purchased a high grade, modern and secure
product. 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
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 products of the DPSI family not only have been tested
extensively in the laboratory, but also went through intensive flight-
testing. Extensive series of tests with especially in house developed
data loggers have been accomplished to measure the real current
consumption in model airplanes. Like done in the automotive industry
an FMEA (Failure Mode and Effective Analysis) reduces the possibility
of damage and malfunction on operating errors to a minimum.
We kindly ask you to read these operating 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, June 2006
The Staff of EMCOTEC GmbH
DPSI RV Family Operating Instructions Version 2.0
Page 5 of 48
Connection sam
p
le of the DPSI RV Mini 5
DPSI RV Family Operating Instructions Version 2.0
Page 6 of 48
2. Features
A DPSI RV is used as a redundant power supply and current distributor
for receivers and servos in RC-Models. The redundancy is
accomplished by using two connected batteries. If one battery fails, the
second battery guaranties safe operation. In the normal case, both
batteries are discharged simultaneously. Furthermore, current is cut in
half in each single battery by the two “parallel” connected batteries,
which allows for batteries with lower ampacity.
All servos directly connected to a DPSI RV are supplied with full power
and each servo obtains maximum current without burden the
damageable receiver.
Due to switching the supply voltage electronically (the switch
transmitter does not switch on the current but only supplies a switch-on
signal), there is no power loss, weak contacts or transition resistance.
For all DPSI RV systems, the electronically switches are built
separately, i.e. the electronically parts are doubled. The switches are
failsafe and are driven by self-holding circuitry, rather by a micro-
controller. Thus, an operating DPSI RV stays powered on, even if the
on/off switch transmitter is removed or broken or if the microcontroller
is malfunctioning.
Using DPSI RV systems, RC receiver sets reach new dimensions. In
particular, a stabilized output voltage, which supplies the receiver as
well as all servos, accounts for. A DPSI RV therefore offers:
Battery switching function
Complete voltage regulation for all RC components
Electronically, failsafe switches
Current distribution with HF filtering
Battery voltage monitoring with acoustically warnings
DPSI RV Family Operating Instructions Version 2.0
Page 7 of 48
Voltage Regulation:
Until now, the receiver set was supplied directly by the connected
battery (or a corresponding battery switch). The output voltage
depends heavily on the current discharge state. Because virtually
always 5-cell NiCad or NiMH batteries are being used in large model
airplanes, a fully charged battery reaches up to 7.5 volts after the
charger shuts off (depending on the charging current and the internal
resistance). This peak voltage drops relatively fast, but can cause
reduced lifetime of the servos in unfavorable cases, because the
manufacturers usually allow only up to 6 volts. Due to the increased
usage of Lithium-Polymer batteries (e.g. LONGGO) voltage regulation
is mandatory, because the batteries nominal voltage is 7.4 volts.
The electronics of the DPSI RV systems make sure, that the voltage of
the batteries is reduced to an acceptable value, independent of the
provided input voltage of the batteries. Using a jumper (a small
connector), the output voltage can be adjusted in four steps (except for
the DPSI 2001 RV – here the voltage is fixed). Thus, the power
requirements can be adjusted to the pilots needs.
Low voltage warning:
In order to inform the user about the discharging state of his batteries,
a microcontroller using an intelligent algorism is integrated into the
DPSI RV systems, to monitor all voltages. Errors (e.g. battery voltage
too low) are unambiguously communicated through a built in buzzer
acoustically and in the switch transmitter by the central LED optically.
Additionally, the DPSI RV allows for direct connection of external LED
displays (battery controllers). In order to use different battery types, a
DPSI RV can be “programmed” for the battery being used. Thus,
through simple programming you can select between 5-, 6-, 7-cell
NiCad/ NiMH batteries or LiPo batteries (e.g. LONGGO).
DPSI RV Family Operating Instructions Version 2.0
Page 8 of 48
Hint:
On delivery, the DPSI RV system’s low voltage recognition is programmed for 2-
cell LiPo batteries. For using other battery types, the corresponding type must be
programmed first (see chapter 5.9)!
The output voltage is set to 5.6 volts on delivery (DPSI 2001 RV 5.9 volts – other
values on customer request possible).
Different versions:
In order to satisfy all applications, different DPSI RV versions are
available:
The DPSI RV Mini 5 addresses pilots of the 2 to 2.5 meter aerobatic
class, who do not need too many servos for their model and where
only up to two servos maximum work on one flap. Therefore, only
heavily loaded rudders are supplied by the DPSI (aileron, elevator, yaw
rudder). Servos for further functions can be connected directly to the
receiver (e.g. engine throttle, retractable gear, etc.)
The DPSI RV Mini 6 is primarily intended for jet- and glider-pilots (but
suits motorized models too), where more channels are needed but
where only one servo works on a flap. Here too, additional servos can
be connected directly to the receiver.
DPSI RV Family Operating Instructions Version 2.0
Page 9 of 48
The DPSI 2001 RV is the enhancement of the DPSI 2001 and supplies
26 servos altogether, which result from 10 receiver channels.
Therefore, it is predestinated for all kinds of large model airplanes,
which need many servos (e.g. 40% size models). Two additional
outputs (MPX connectors) allow for connection of consumer loads,
which can be supplied with unregulated battery voltage (e.g. 7.4 volts
high load servos, smoke pumps, illumination etc.).
The DPSI RV allows for connecting of up to 32 servos, which result
from 12 receiver channels. Especially large-glider- and airliner-pilots
missed this variety. Due to the higher number of servos, the DPSI RV
is a little larger and heavier then the smaller systems. Because more
heat dissipation is encountered, a larger heat sink is necessary. The
DPSI RV contains two complete separate current paths and voltage
regulators. Even the breakdown of an electronically part does not lead
to a malfunction – everything is built up redundantly.
DPSI RV Family Operating Instructions Version 2.0
Page 10 of 48
The DPSI RV Mini ESP versions (Extra Servo Power) correspond to
the DPSI RV Mini 5 and 6, but possess 3 additional connectors, which
carry the unregulated voltage of the batteries and therefore are
applicable for consumer loads with higher output voltage (e.g.
Tonegawa servos, smoke pumps, illumination, etc.).
This manual suits for next models
5
Table of contents
Other Emcotec Recording Equipment manuals
