Technical data

QUICKTRONIC
®
Intelligent DALI DIM | Frequently asked questions (FAQ)
48
— How can I easily and cost-effectively control a
permanently set level of lighting?
Easily controlling preset levels of lighting with 100 %
or 1 % luminous fl ux and multiple values in between
is possible using fi xed resistors or Zener diodes.
— Can dimmable 1…10-V ECGs from OSRAM be used
for emergency lighting?
Yes, however, using dimmable ECGs in emergency light-
ing systems is associated with additional costs. Compo-
nents such as signal amplifi ers, the ICM 10 or the mod-
ule that holds the light constant would have been
destroyed when the DC voltage was connected. This
means that these components must be disconnected
from the mains when switching to a supply with DC
voltage.
— Can bi-pin base compact fl uorescent lamps be
dimmed?
No, ECG operation with bi-pin lamps is not generally
permitted. The glow igniter integrated into the base can
cause problems, such as poor and unreliable ignition,
shortened lifetime or destruction of the ECG. Additional
heating of the lamp electrodes is not possible in
dimmed operation, which would lead to a clearly shorter
lifetime. As a general rule, only 4-pin base lamps with
the designation /E (e. g. DULUX S/E, D/E, T/E) can be
operated on the ECG and used for dimming.
— Does continuous operation in the lower dimmer
setting infl uence the lifetime of fl uorescent
lamps?
Long-term operation of fl uorescent lamps and ECGs
from OSRAM in dimmed states does not have a nega-
tive infl uence on the lifetime of the lamp.
9.2.1 Troubleshooting 1…10 V
— The lamp does not burn with 100 % luminous fl ux.
The control line is not or is incorrectly attached to the
control unit, or the current unit is insuffi cient as a cur-
rent sink and, therefore, cannot reduce the control volt-
age. Inspect the wiring. Inspect whether the control volt-
age is reduced when dimming; if necessary, integrate
parallel resistance into the control line. Likewise, one or
more control inputs could be reverse-polarized:
— Disconnect control unit
— Split up control circuit
— Split up control circuit further
— Lamp always burns with minimum brightness.
Plus and minus connection of the control line are
switched, or short circuit in the control line. Connect
lines with right polarity, inspect wiring.
— The lamp does not exhibit the desired luminous
fl ux when controlled with potentiometer or fi xed
resistors.
The potentiometer or resistors are incorrectly dimen-
sioned. Check the values.
— Insuffi cient brightness along the lamp.
Refl ector distance to the lamp is too small; capacitive
leakage currents are occurring. Increase the distance
between the refl ector and the lamp.
— Synchronized lamp fl ickering.
The error is outside the dimming system, for example,
N-wire disruption, control voltage not OK. Inspect the
N-wire connection and control unit.