Technical Design-in Guide Engine LLE G2 PRE KIT | 03-2020 | 1.2 | en
Intelligent Temperature Guard
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8.8. Intelligent Temperature Guard
8.8.1. Description
The Intelligent Temperature Guard function provides protection against temporary thermal overloads. Thermal overload protection is
triggered if the t temperature is exceeded. This way, instant failure of the LED Driver can be prevented.
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8.8.2. Behaviour
The following table shows the exact behaviour and parameters of the Intelligent Temperature Guard function.
Parameters
Description
Starting point
of power
reduction
When maximum t temperature is exceeded.
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(1)
Type of power
reduction
Power reduction takes place in gradual steps.
½
WARNING!
The maximum t temperature is the maximum permitted in terms of life time. Operating the LED Drivers above the permitted t
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temperature is not allowed.
The Intelligent Temperature Guard function does not replace the proper thermal design of the luminaire and does not enable the
lighting to operate for lengthy periods of time in impermissible ambient temperatures.
I
NOTICE
The temperature at which the power reduction starts is device-specific and depends on the load and the
installation situation.
Depending on the installation situation and the load of the device, the temperatures at different measuring
points of the device may differ. As a result, it may happen that the actual measured temperature is not identical
to the temperature at the t point.
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In any case, the starting point of the power reduction is higher than the predetermined maximum t
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temperature.
For the functioning of the protective function these deviations are not decisive. The starting point of the power
reduction is selected by the device in a way that the protective function starts when the rated life time would
otherwise be significantly affected.