DCDA-33M
Dimming actuator for LED sources, 3-channel
EN
Characteristics
- DCDA-33M is a dimming unit designed to dim single-color and RGB LED light sources controlled
by variable current.
- The actuator has three independent channels and each output channel is individually addressable
and controllable.
- DCDA-33M actuator can be controlled from the bus BUS, DALI or DMX.
- When controlling the unit from the buses BUS and DMX, also the fourth virtual channel can be
supported to control overall brightness (BUS - switching in iDM3, DMX - switch long press of PRG).
- DCDA-33M can directly control from the system iNELS where the communication interface is the
installation BUS.
- If for controlling, a communication interface DALI or DMX is used, it is possible to use the master
unit EMDC-64M.
- The supply voltage of the dimming unit must be at least 4V higher than the expected output
voltage on the load (see graph).
- Setting the communication interface and addresses of actuators is performed using DIP switches:
a) switch No. 1
- In the upper position determines DALI or BUS
- In the lower position determines DMX
b ) switch No. 2 (if that switch 1 is in the upper position)
- In the upper position determines DALI
- In the lower position determines BUS
- Using the control buttons on the front panel, you can manually control the output.
- The input circuits of communication interfaces are optically isolated from the supply voltage
connected lamp unit, and is therefore resistant to electromagnetic interference.
- DCDA-33M in 3-module is designed for panel mounting on DIN rail EN60715.
General instrucions
CONNECTION TO THE SYSTEM, INSTALLATION BUS
iNELS3 peripheral units are connected to the system through the BUS installation. Installation BUS
conductors are connected to the terminal units to BUS+ and BUS- terminals, wires cannot be interchanged.
For installation of BUS it is necessary to use a cable with a twisted pair of wires with a diameter of at least
0.8 mm, the recommended cable is iNELS BUS Cable, whose features best meet the requirements of the
BUS installation. Bearing in mind that in terms of all the properties is it is possible in most cases also use the
cable JYSTY 1x2x0.8 or JYSTY 2x2x0.8, however it is not recommended as the best option. In the case of a
cable with two pairs of twisted wires it is not possible to use the second pair of the other for modulated
signal due to the speed of communications; it is not possible within one cable to use one pair for one
segment BUS and the second pair for the second segment BUS. For installation of BUS it is vital to ensure
that it is kept at a distance from the power lines of at least 30 cm and must be installed in accordance with
its mechanical properties. To increase mechanical resistance of cables we recommend installation into
a conduit of suitable diameter. BUS topology installation is free except for the ring, wherein each end of
the bus must terminate at the terminals BUS + and BUS- peripheral unit. While maintaining all the above
requirements, the maximum length of one segment of the installation BUS can reach up to 500 m. Due
to the data communication and supply of units in one pair of wires, it is necessary to keep in mind the
diameter of wires with regards to voltage loss on the lead and the maximum current drawn. The maximum
length of the BUS applies provided that they comply with the tolerance of the supply voltage.
OUTPUT BUS DALI AND DMX
DALI is a two wire BUS and polarization-independent BUS. EMDC-64M converter has a power supply (16
V / 250 mA) DALI BUS implemented inside and it must not be connected to any external source. For the
management of DALI BUS no exact cable type is recommended, but it is important to keep some installation
conditions. For DALI BUS lines up to 100 m it is recommended to use a min. conductor size of 0.5 mm
manage from 100 - 150 m min. cross section of 0.75 mm
min. 1.5 mm
2
. Management of more than 300 m is not recommended. The voltage drop at the end of the
installation shall not be greater than 2 V. In the case of a 5-pin cable, be sure to avoid confusion with the
management of the BUS line power. BUS connection topology is arbitrary and need not be terminated.
DMX was developed as a digital interface for the control of eff ect lighting. BUS topology is strictly linear and
must be terminated at both ends of the resistor with a nominal value of 120 Ω. With EMDC-64M this can be
done by shorting the ends of adjacent terminals TERM and A. In general, when you install DMX BUS follow all
RS485 installation requirements. When using repeaters you can control up to 64 receivers. Ideally, the range
may be up to 1200 m.
CAPACITY AND CENTRAL UNIT
It is possible to connect to the central unit CU3-01M or CU3-02M two independent BUSes by means
of terminals BUS1+, BUS1- and BUS2+, BUS2-. It is possible to connect to each BUS up to 32 units, so it
is possible to connect directly to the central unit a total of 64 units. It is necessary to comply with the
requirement of a maximum load of one BUS line - maximum up to 1000 mA current. When connecting
units which draw greater than 1A, BPS3-01M with 3A sampling can be used. It is the sum of the rated
currents of the units connected to the BUS line, other units can be connected using the units MI3-02M,
which generate further BUSes. These are connected to the CU3 unit via the system BUS EBM and you can
connect a total of 8 units via EBM BUS to the central unit MI3-02M.
SUPPLYING THE SYSTEM
For supplying power to system units, it is recommended to use the power source of ELKO EP titled PS3-100/
iNELS. We recommend backing up the system with backup batteries connected to the source of PS3-100/
iNELS (see sample diagram of connecting the control system).
GENERAL INFORMATION
To operate the unit, it is necessary that the unit is connected to a central unit CU3 series, connected to the
central unit of the system CU3, or to a system that already contains this unit as its expansion to include
further system.
All unit parameters are set through the central unit CU3-01M in the software iDM3.
There is LED diode on the PCB for indication of supply voltage and communication with the central unit
series CU3. In case that the RUN diode fl ashes at regular intervals, so there is standard communication
between the unit and BUS. If the RUN diode lights permanently, so the unit is supplied from BUS, but there
is no communication between BUS and unit. In case that RUN diode is OFF, so there is no supply voltage on
the terminals BUS+ and BUS-.
2
and more than 150 m it is recommended to use
Description of device
1
2
3
4
5
* Setting of the RGB/RGBM PRG button is only possible in DMX mode (fi rst DIP switch is down).
Setting RGB/RGBM mode BUS is done with iDM3 software.
Switching RGB/RGBM by long press of PRG:
- set to address 0
- RGB mode - RUN LED fl ashes 1x
- RGBM mode - RUN LED fl ashes 2x
- set the address other than 0
- RUN LED lights (ok) to change fl ashes
- RUN LED fl ashes - no DMX signal
- RUN LED fl ashes 2x - turn signal DMX
Setting the DIP switches
Setting the DALI communication
interface - Switch 1 and 2
Setting the DMX communication interface - Switch 1
Setting address - Switch 2-10
Connection
2
. To
A
B
GND
BUS-
BUS+
02-81/2017 Rev.1
1. Terminals for connecting DMX
2. Terminals for connecting BUS
6
3. Supply voltage / communication
indication
7
4. Setting DMX RGB/RGBM *
5. Supply terminals for device and LED
light source
8
6. Terminals for connecting DALI
7. Maximum power settings - LED light
9
source
8. Output mode indicatuon
9. Manual control output by briefl y
10
pressing (ON/OFF)
10. Setting input / address
11. Terminals for connecting LED
11
Setting the BUS communication
interface - Switch 1 and 2
DMX BUS
DALI BUS
0.3
0.3
0.3
+12-60 V DC
GND
1/2