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Gen VI Dimmer User Manual
Page 32
The following curves are available,
•
S curve . Provides a normal response between control signal input and dimmer output
•
Linear curve . Provides a linear response with more output at the lower end
•
TruPower . GEN·
VI “TruPower” output provides switched power by utilising relays,
guaranteeing there are absolutely no electronics in the circuit to interfere with connected
loads. When the control signal exceeds 60% the channel will switch from OFF to full ON.
When the control signal drops below 40%, the channel will switch OFF. “TruPower” is used
for devices that do not fade, but need to be switched OFF or ON such as motors, discharge
lamps and LED fixtures. Min and Max level are not available when TruPower is selected.
Channels can also be quickly configured as “Dimming” or “TruPower” in the
“Dim/TruPower” menu. See section 5.7
•
Custom curve . The custom curve is provided for special dimming cases. One LSC custom
curve is included with the GEN·VI dimmer. It is suitable for dimming LEDs. You can export
the LSC custom curve and modify it to your own requirements. To do so, insert a SD card
into the slot then select:
Config , System , Import/Export , Export Curve . Transfer the
“CURVE.DAT” file from the SD card to a computer. The file is a text file that you can open
in any text editor or spreadsheet program. It has one entry per line indicating output level
(0-65535) for each of 256 DMX input values (0-255).
If you want to visualise and/or manipulate the data, select the whole file in your text editor,
copy the contents and paste it into a column in a spreadsheet program then create a graph
from that data series
LSC custom curve opened in a spreadsheet with a line chart inserted
For example, if DMX input level is 2 then you look at line 3 (because DMX values start at 0)
and you get the output level of the dimmer of 3500. You can change the shape of the curve
by changing the dimmer output levels for each associated DMX input level.
Using a spreadsheet with a chart displayed makes it easy to see the new curve because the
chart changes in real time as you change the output levels.
When you have made your changes in the spreadsheet, save the file as CURVE and in the
“Save as type” box select “Unicode Text (*.txt)”. Close the spreadsheet program then use
your computer to ch
ange the file name from “CURVE.TXT” to “CURVE.DAT”. Only one
“CURVE.DAT” file can exist so you must over right the original file.
To import your custom curve, copy the file to an SD card, insert the card in the GEN·VI then
select:
Config , System , Import/Export , Import Curve .
Line number
indicates
DMX level
(offset by 1)
Dimmer
output level