OSRAM QUICKTRONIC INTELLIGENT DIM CFL - Manual (Page 80)

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8.2.1 Troubleshooting 1…10 V
• Lamp does not burn with 100 % luminous flux
The control line is not connected or not correctly connected to the
control unit, or the control unit is not a sufficiently good current sink
and, hence, cannot reduce the control voltage.
Check the wiring. Check that the control voltage is reduced while
dimming and, if necessary, install a parallel resistor in the control
line.
Also one or more control inputs may be pole reversed:
• • Disconnect control unit
• • Subdivide control circuit
• • Further subdivide control circuit
• Lamp always burn at minimum brightness
+ and - connectors of the control line are reversed, or short circuit
in the control line.
Connect lines with correct polarity, check wiring
• The lamp does not show the required luminous flux when
controlled with potentiometers or fixed resistors.
Potentiometers or resistors are wrongly dimensioned. Check the
values
• Insufficient brightness along the lamp
Spacing of the reflector to the lamp is too small, capacitive dis-
charge currents occur.
Increase gap between the reflector and the lamp
• Synchronous lamp flickering
Fault is outside the dimming system, e.g. N conductor disconnec-
tion, control voltage not OK
Check N conductor connection and control unit