15
6.
DMX 512 CONTROL
(only VDC Control Unit DMX)
THELIGHT lightning fixtures have been designed for a full DMX control from the 5-pin DMX port
located at the back of the VDC Control Unit DMX.
Connect the DMX cable coming from your console into the DMX IN male connector located at the
back fo the VDC Control Unit DMX. Beside the DMX IN there is also a DMX OUT connector to daisy-
chain fixtures.
Adressing channels
Push both + and - COLOR TEMPERATURE buttons at the same time and then switch on the power
button. Wait a few seconds for the three digital displays to blink.
Now you can define the start address. To do so just push the + or – DIMMER buttons to increase or
decrease the first fixture address. Once you have chosen the desired address number push the
TURBO button to save the selection.
Keep in mind the following points regarding DMX control:
!
THELIGHT DMX protocol uses 3 channels per fixture
!
After the DMX address is entered the Control Unit will automatically assign the following two
channels.
!
If you wish to control several THELIGHT fixtures at the same values you will have to set them
to the same address.
!
If you wish to control several THELIGHT fixtures independently you will have to offset their
address by 3 channels. Example:
fixture1 address 001 -- fixture2 address 004 -- fixture3 address 007
DMX Channels
When you connect your console to the VDC Control Unit DMX you will be able to control THELIGHT
fixtures through 3 channels:
!
Channel 1
(start address) –
COLOUR TEMPERATURE
From 2.5 to 6.5 (from 2800Kelvin to 8500Kelvin)
Fader at 0
2.8 means 2800Kelvin
Fader at 100
8.5 means 8500Kelvin
!
Channel 2
(start a 1)–
DIMMER
!
Channel 3
(start a 2)–
GREEN/MAGENTA correction
fader at 0%
-1/4 Green
fader at 25%
- 1/8 Green
fader at 50%
standard position (green/magenta at 0)
fader at 75%
+1/8 Green
fader at 100%
+1/4 Green
NOTE:
Do not use microphone cables or other general purpose two-core cables designed for
audio or signal use. They are not suitable for DMX 512. Problems due to wrong cabling
may not be immediately perceptible.
Microphone cables may appear to work fine, but systems built with such cables may fail
or be susceptible to random errors.
Cable must comply with RS-485 DMX protocol (EIA485).
NOTE:
A DMX terminator should be plugged into the final, empty, OUT connector of the last slave
on the daisy chain.
A terminator is a stand-alone male connector with a built-in 120
!
resistor, matching the
cable characteristic impedance, connected across the primary data signal pair.
NOTE
for Avolites
consoles users:
THELIGHT luminaries DMX working personality can be configured to be
recognised by Avolites consoles.
Download the personality files to install into Avolites consoles from
www.avolitesdownload.com/PersonalityLibrary/?mainPage=Main.asp&ID=3516