Bron D 1600, Operating Instructions Manual

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8. DISPLAY ON BALLAST UNIT
Mains switch (2)
Illuminated: mains voltage is present. The unit is switched on.
Not illuminated: The unit is switched off or not connected to the mains voltage.
Indicator for earth conductor (3)
Illuminated: The unit is switched on and the earth conductor is correctly connected.
Not illuminated: The unit is switched off or the earth conductor is not correctly connected.
Lamp control display (4)
Illuminated: The lamp is switched on and the unit is functioning correctly.
Not illuminated: The lamp and/or the ballast unit is switched off or not connected to the mains
supply.
(5a
–
c) operating mode display
(7a, b) display shows that the lamp has been identified
The EB 800.1600 ballast unit features monitoring electronics with detailed fault diagnosis.
Overvoltage protection: If the applied voltage is greater than 260 V, the ballast unit either
switches off automatically, or cannot be switched on. Button (4) blinks to indicate this.
Low-voltage protection: If the applied voltage is below 90 V, the ballast unit either switches off
automatically, or cannot be switched on. Button (4) blinks to indicate this.
Current limitations: When a 1600 W lamp is operated on a mains voltage below 95 V, the lamp
output is automatically reduced to prevent the current exceeding 18 A. Button (7a) blinks to
indicate this. Should the voltage rise above 95 V again during operation, the output will remain
unchanged at the reduced level, so as to avoid continual changes in lighting.
Thermal monitoring: If the operating temperature of the unit is exceeded, the ballast unit
automatically regulates the output gradually down to max. 50 %. This lowering of the output
allows the user time to recognise the situation and to prevent or delay a total shutdown. If a
shutdown occurs, for safety reasons, the unit does not automatically switch on again. The lamp
must be switched on again manually.
Igniter circuit protection: If the bulb fails to trigger, ignition is blocked for 30 seconds after
about ten attempts at ignition in succession.
9. PROTECTIVE CIRCUITS IN THE BALLAST UNIT