RAKO RLED20+CC4 Three Channel Constant Current Dimmers Instruction Manual
- June 5, 2024
- rako
Table of Contents
RAKO RLED20+CC4 Three Channel Constant Current Dimmers
General
Rako RLED20+CC4 modules are three channel, constant current dimmers with a
maximum rating of 20W per channel for use with 3 colour constant current LEDs.
The module is designed to directly control LEDs with no additional drivers.
The output current rating can be set to give 350mA, 500mA, or 700mA. They are
designed to accept DC power from a suitably rated power supply up to a maximum
of 48V DC. The RLED20+CC4 can be used with fittings with either separate or
common positives.
Important
Do not connect directly to a 240V mains supply.
Installation should only be carried out by a competent electrician.
Never attempt to connect a Rako module or remove the terminal cover without
first isolating the circuit at the fuse/MCB board.
The circuit supplying a Rako module should always be protected by either a 5A
fuse or 6A MCB.
Mounting
Rako modules should be mounted in areas that are adequately ventilated, dry
and outside of any enclosed metal casings that may interfere with the wireless
signal. Wherever possible the mounting bracket should be used.
Modules should be mounted vertically or horizontally with the ventilation
slots at the top.
Whilst Rako modules are designed to be completely maintenance free the units
should be mounted in an accessible location should there be a fault or re-
addressing of the unit be necessary (see ‘Set-up and Addressing’)
Loadings
The permissible loadings depend on several criteria keeping within the maxima for the unit of 20W per channel and a forward voltage of 45V. For the purposes of calculating the total forward voltage of an LED fitting refer to the manufacturer’s data.
Channel Addressing
When giving the RLED20+CC4 a Rako channel address the next 2 channels are automatically assigned, sequentially from this point. For example, a module controlling an RGB fitting and addressed as channel 3 will control Red on channel 3, Green on channel 4 and Blue on channel 5.
Connections
Connect the RLED20+CC4 module according the wiring diagram overleaf. Note the
supply should be from a suitable DC power supply with an adequate power and
voltage rating. The power supply should have a minimum voltage of 24V and a
maximum of 48V and needs to give adequate forward voltage to drive the lamps
connected. The internal voltage drop is approximately 3V giving an effective
maximum output forward voltage of 45V.
As with all constant current LEDs fittings should be wired in series. Use the
header connector to select the required output current. The default with no
header connected is 350mA.
In example Fig 1 above the current is set to 700mA
Do not use loop In/Out connections within the module. A junction box should be
used if required.
Ensure the cable clamp bar securely clamps the cables and that the terminal
cover is fitted before switching the supply on.
Initial Checks
When power is initially connected to the module the unit should switch the
load ON. The load can then be manually switched using the clear button on top
of the module.
The factory set address for both modules and transmitters is House 1 Room 4
(See Fig 2 for further information). A Rako wireless wall panel set as address
House 1 Room 4 will control and dim the module.
Should the module not respond as above then further investigation should be
made before proceeding further.
Set-Up and Addressing
RLED20+CC4 modules can be programmed manually or by using RASOFT programming
software. For software programming refer to the appropriate programming guide
supplied as a PDF with the programming interface (RA or RTC-Bridge etc.) or
download from our website: www.rakocontrols.com.
For Manual addressing from the Keypad see the reverse of this sheet.
Notes on address switches
The address numbers are set using the switches on the back of a Rako
transmitter. Binary coding is used and a diagrammatic explanation is given in
Fig 2. It is not however necessary to understand binary just set the House
switches to a different setting than the factory default and use a different
combination of Room switch settings for each room or area to be controlled
separately.
Power-Up Mode
With the factory address setting of House 1 an RLED20+CC4 will turn ON when
power is applied. When the House address is changed the Power-Up mode becomes
‘OFF’ which is generally preferred, for instance if there is a power cut
during a holiday.
Manual Operation
The clear button can be used as a manual On/Off switch.
Multiple Control Panels
If the module is to be controlled by two wall or hand-held transmitters it is
only necessary to address the module to one of these transmitters. Set the
other transmitters to the same House and Room address and they will transmit
exactly the same message as the first transmitter and the module will respond
accordingly.
LED functions
The internal LED behind the clear button will flicker when the module receives
ANY Rako wireless message and is a useful diagnostic indicator. This function
becomes inactive after 20 minutes to avoid nuisance light spill but can be re-
activated by pressing the clear button.
If an RLED20+CC4 module has already been addressed to a wall-panel the
internal LED will start to pulse as soon as that transmitter (or any other
transmitter with the same address) is put into programming mode. The module
can still be re-addressed in the normal way, for example when changing its
Channel address within the same Room.
Colour Cycling
As a default setting the RLED20CC3 module will not dim from Fade Up/Down
commands from a Rako transmitter but instead will start a colour cycle through
the colours programmed for Scenes 1–4 when it receives a Fade Up command. A
Fade Down command will stop the cycling
Care and Maintenance
A Rako module contains no user serviceable parts. Should for any reason you need to contact us please contact us via our website www.rakocontrols.com or by phoning our customer help line on 01634 226666.
Initial Addressing ofa Rako Receiver Module
In the following procedure both the controllers (wallpanels and hand held
remotes) and the receivers have an automatic time out after approximately 3
minutes when in programming or set-up mode. This feature avoids the
possibility of either being left permanently in programming or set-up mode.
This may cause confusion if either the controller or receiver times out before
the procedure is complete.
It is worth becoming familiar with the procedures before starting the
addressing procedure. If at any time it is necessary to start again the
controllers can be returned to normal mode by pressing the ‘Off button and the
receivers by resetting the electrical supply. 
Module layout and wiring
