OSRAM OPTOTRONIC Constant current LED power supplies with 3DIM - Manual (Page 18)

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WIRING AND CONFIGURATION OF THE ECG
4.3.2. Parameter setting via 3DIM Tool
The AstroDIM operation can be individually adjusted by means of the following parameters.
In case the ECG is switched on right after the calculated sunset and switched off right at the calculated sunrise, the arith-
metic middle of the night is visualized by the 3DIM Tool as a yellow line and can be compared to midnight (see fi gure 24).
Table 7: AstroDIM parameters (dimming profi le)
Parameter Description
Power-on level Output power level (in % of the nominal value of the ECG/lamp combination) after switch-on via the mains.
Dim level 1 Dim level Output power level (in % of the nominal value of the ECG/lamp combination) during dimming step 1. The dim level can be set with
the 3DIM Tool. The minimum set value is limited by the installed system or ECG (refer to the datasheet of the respective ECG).
Start time Time (24 h) on reference date at which the ECG starts the dim level.*
End time Time (24 h) on reference date at which the ECG changes to the next/previous level.*
Dim level 2
(optional
activation) Dim level See dim level 1.
Start time See dim level 1.
End time See dim level 1.
Dim fade time Transition time between power-on level and dim level 1 or between the two dim levels (logarithmic dimming change).
Half operating time The arithmetic middle of the night, which rarely coincides with midnight on a clock.
Reference date Date of start and end time.
Daylight saving time Indicated if considered in start and end time calculation.
Location Coordinates of ECG location to calculate sunset and sunrise.
* If the ECG is not switched on/off at the time of sunset/sunrise as indicated by the 3DIM Tool (see fi gure 24), the start and end time(s) of the
dim level(s) also vary according to this deviation.
Figure 24: Length of the night over the year as visualized by the 3DIM Tool.
Sunrise
12
03
09
00
06
21
18
15
12
Sunset
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Length of the night
Middle of the night
Local time (h)
Dim levels (dark)
Night (bright)
8:08
16:18
Day mark