OSRAM QUICKTRONIC INTELLIGENT DIM CFL - Manual (Page 49)

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b) Lower limit
An effective lower limit can be realized by a series connection of 2
control units. The sum of the two units is effective. With one unit,
the default control voltage of the other unit cannot be undercut. At-
tention: In a series connection, two control units (e.g. DIM MCU) is
the smallest achievable control voltage approx. 2 V (~= 4 % luminous
flux) connections must be realized according to the diagram.
Figure 30: Lower limit of the control voltage
3.6.3 Line length of the 1…10 V control line
The control line length is only limited by the drop in voltage. It can
generally be said that a line length of 100 m is completely noncritical.
For a more precise estimate, the following formula can be used:
For example, with 1.5 mm², strip of luminaires, supply at the begin-
ning:
L
max
= 35 km/no. of ECGs
= 350 m for 100 ECGs
= 700 m for 50 ECGs
Systems of any size can be realized with DIM SA signal amplifiers.
3.6.4 1…10 V DIM ECG and emergency lighting
QUICKTRONIC DIM is suitable for emergency lighting systems in ac-
cordance with VDE 0108. If QUICKTRONIC
® DIM are used in emer-
gency lighting systems, the control line should be disconnected by
suitable measures at the plus pole during emergency operation. Cor-
responding, simple-to-wire changeover converters that pass on a
presettable control voltage to the OSRAM DIM ECG, thereby enabling
battery-saving emergency lighting operation at less than 100 % lumi-
nous flux, are commercially available.