Illustration 1 - Directional diagram
4. Functional description
Once placed under the operating voltage, the optical warning signal can be run in one of three modes (flashing,
blinking and rotating lights). The signal is emitted horizontally via 16 LEDs distributed across two levels. Each
sector always has 4 LEDs. There is the option to switch off one or two of the four sectors, see Illustration 2 -
Sector distribution for
light emission
.
This can be used to reduce power consumption in unnecessary beaming
directions, or to avoid mis-information or blinding. The operating modes, sector switch off and activation of a
potential nighttime brightness reduction can be configured using DIP switches. The nighttime brightness reduc-
tion takes effect in dark environments measuring less than <50 Lux.
Illustration 2 - Sector distribution for light emission
The monitoring of the light does not influence the functionality of the light and is available as a fault message
output for a higher-level control system. When the operating voltage is present, the monitoring circuit draws
directly from a fault indicator relay with positively driven contacts. The relay is tripped if an insufficient level of
light is produced even after the light is switched on, see Illustration 3 - simplified diagram. The separate input
signals for the two sub-units and error report in the event of a fault ensures that the functionality of the monitor-
ing and the light can be checked automatically and reciprocally. The relay contact and voltage connections form
the interface to the higher-level control system.
0°
0°
Blind
(optional
Sector 3 Sector 4
Sector 1
Sector 2
Terminals
Angle
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