Technical Design-in Guide Engine LLE G2 PRE KIT | 03-2020 | 1.2 | en
Constant Light Output
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8.5. Constant Light Output
8.5.1. Description
The light output of an LED module reduces over the course of its life. The Constant Light Output function compensates for this
natural decline by constantly increasing the output current of the LED Driver throughout its life. As a results, a virtually uniform light
output is achieved at all times.
For configuration purposes the expected module-specific values for lifetime and residual luminous flux must be specified. The output
current is then controlled automatically on the basis of these values.
The LED Driver typically starts with an output current ("Required Intensity") that corresponds to the expected residual luminous flux
and calculates the increase in the value on the basis of the anticipated lifetime.
If the OTL function is enabled, visual feedback is given as soon as the LED exceeds the expected LED lamp life. If the expected LED
lamp life is exceeded, the luminaire flashes for 2 seconds after being switched on.
8.5.2. Commissioning
Procedure via the masterCONFIGURATOR
Activating the Constant Light Output function
Activating the Over the Lifetime function
I
NOTICE
To be able to adjust the parameters "Required intensity", "LED burning hours" and "Expected LED life" the "Advanced settings"
must be activated.
Further information can be found in the masterCONFIGURATOR manual (see
Open dialog box "Tridonic-specific configuration"
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Click tab "CLO and OTL"
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Set drop-down menu "Constant intensity" to "enabled"
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Click "save"
-> Changes are saved
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Open dialog box "Tridonic-specific configuration"
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Click tab "CLO und OTL"
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Set drop-down menu "Visual feedback" to "enabled"
_
Click "save"
-> Changes are saved
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