OSRAM OPTOTRONIC Constant current LED power supplies with 3DIM - Manual (Page 10)

10
WIRING AND CONFIGURATION OF THE ECG
4.1.2. Control line – cable requirements
The maximum total cable length of a DALI
® control line is
300 m. When selecting a cable, it must be ensured that the
voltage drop on the control line does not exceed 2 V at
250 mA.
The following table can be used as a quick reference guide
for selecting the correct cable cross-section.
Note: For reasons of clarity, it is recommended to use the
black and gray wire of the cable for the DALI
® connection
(see fi gure 12).
Table 2: Recommended cable cross-sections
Cable length up to 100 m 100 to 150 m 150 to 300 m
Cable cross-section 0.5 mm 2 0.75 mm 2 1.5 mm 2
Figure 13: Connection of multiple 3DIM ECGs via DALI ® control line.
Figure 12: Individual wires of a DALI ® control line.
e.g. NYM 5x…
Neutral conductor
DALI ®
(DA)
DALI ®
(DA)
Protective
earth
Phase
Luminaire 1
Depending on
the ECG type
3DIM ECG
LED out
L L L N N N SD SD SD DA DA DA DA DA DA
LED out LED out
3DIM ECG 3DIM ECG
Depending on
the ECG type Depending on
the ECG type
Light
load Light
load Light
load
Luminaire 2 Luminaire 3
DALI ® bus/
DALI ® controller
L
N
DA
PE
DA
PE N L