ARRI EB 1200 Event Three, Руководство по эксплуатации

Страница: 15 / 17

Deutsch
- 15 -
LICHTTECHNIK
6. Trouble Shooting
6.1 Does supply voltage correspond with ballast required voltage? Dual voltage
Guide
ballasts are autoswitching.
6.2 Connect ballast to power supply and test earth (LED “PE” has to be on).
6.3 Check power supply: The three LEDs "L1", "L2" and L3" must lit to show that all
three phases are supplied with line voltage. The red LED "MAINS FAULT" indicates
that the Ballast switched off due to line overvoltage ( >270V
eff
against neutral). Possible
cause may be the exchange of one phase with the neutral wire. The ballast will stay in
this protection mode until it is disconnected from mains.
6.4 Ensure correct lamp is fitted with correct distribution and cables.
6.5 Ensure ON/OFF Switches are in "OFF" position. Connect the lamp heads and set
ON/OFF switch to "ON".
After approx. 1 second lamps should ignite.
6.6 If lamp does not strike, the lamp head safety switch may be broken - check if lens
door is fully shut and the lens safety switch is activated.
6.7 Is there a good power supply to the ballast?
6.8 If a ballast / multicore cable / splitbox / luminaire does not work then all four units
should be considered faulty.
Do not try a suspected luminaire with another ballast - you may end up with two faulty
ballasts!
To check if a ballast is good, run it with a known good luminaire and known good
multicore cable and splitbox.
6.9 If a module cuts out after running a few minutes there are a number of possible
failures:
The lamp itself may be faulty or at the end of its life.
The thermal cutout in the module may have activated due to extreme ambient
temperature or exposure to direct sunlight in hot summer conditions. The ventilation
might be restricted. After cooling down, the module restrikes the lamp automatically.
The LED "TEMP" stays lit to indicate a temperature problem. To reset the LED the
ballast must be disconnected from mains (pull out line plug or switch off circuit
breaker) for at least 1 minute.
If the power supply exceeds the limits or has spikes or dropouts the ballast switches
off to protect itself. If running on a generator the output for all three phases should
be regulated between 185 - 260 V~ (against Neutral).
Earth leakage of luminaires or head to ballast cables will also cause the protection
circuit to be activated. Test the module with a known good luminaire. If cables are
suspect, they should be exchanged with known good cables.
If a ballast is found to be faulty ideally it should be returned together with the luminaire,
multicore cable and splitbox to the ARRI-service location for examination.