DALI â Technical guide - Osram

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Notes: • Max. lamp cable length of the "hot end" (higher potential to ground): T5, T8: 1 m/T4: 0.5 m • Excessively long lamp cables cause the following problems: - Poor radio interference suppression - Uncertain lamp detection (not in T8) - Poor synchronization of 2-lamp OSRAM DALI/DIM ECGs • Lay the lamp cables close together and close to the lamp • Lamp cables must not be laid in metal pipes and must not be shielded cables • Guide the cables of the different lamp ends separately • In the case of multi-lamp OSRAM DALI/DIM ECGs, the cables to the respective lamp ends must be of the same length to prevent differences in the brightness • When dimming florescent lamps the maximum lamp voltage is reached at the lowest dimmer setting (3 %-10 %) due to the negative current-voltage characteristic Maximum line lengths between dimmable ECG (QTi DALI/DIM) and lamps Cold ends* Hot ends* 1-lamp 21, 22 1-lamp 26, 27 2-lamp 21, 22, 23 2-lamp 24, 25, 26, 27 T5 1.5 m 1.0 m T8 1.5 m (2 m HF DIM) 1.0 m (1.5 m HF DIM) DULUX D/E, T/E Every 0.5 m Table 2: Maximum cable lengths between dimmable ECGs and lamps * "Hot ends" are the lamp cables that have the highest potential to the switching ground or protective ground. The other "cold ends" of the lamp cables have a lower potential to ground. Note: • Maximum capacitance of a filament cable pair to ground: T5: 75 pF T8/DL: 150 pF • Maximum capacitance between "hot" and "cold": T5: 15 pF T8: 30 pF 15
2.4.4 Operation of multiple ECGs in a luminaire If several dimmable ECGs are operated in a luminaire, there can be interference effects and hence to flickering, jerky dimming or even to shutdown of the ECGs if they have not been correctly installed. The cause for this are inductions between the lamp current circuits of several ECGs: If a lamp running at 100 % transfers just 1 % of its current into the neighboring lamp dimmed to 1 %, this represents a fault of 100 %. The same applies to coupling between a heating current circuit, i.e. feed and return lines to one side of the lamp and the neighboring lamp circuit. There should, therefore, be a minimum spacing of 12 cm between the lamp circuits (lamp and cables) of different ECGs. If this is not possible, the lamp wiring must be carefully installed so coupling between the lamp circuits is reduced to a minimum: • Lay the lamp cables close to the appropriate lamps so that the area covered by the lamp circuit is as small as possible. The lamp circuits of the two ECGs must not overlap. This is particularly important for color control if adjacent ECGs are dimmed to different levels. • There should be a spacing of several centimeters between the lamp cables of two ECGs • The "short" (hot) lamp cables (see also ECG imprint) should lead to one side of the lamp and should be as short as possible. The "long“ (cold) lamp cables to the other side of the lamp (see Table 2) • Mains and control cables should not be laid close to the lamp cables (prevents undesired couplings into the control cable) • All the mains and control cables may be routed together. To ensure that radio interference suppression is not impaired, there should be a gap of several centimeters to the lamp cables. 16
Page 1 and 2: www.osram.de www.osram.com June 200
Page 3 and 4: 3.2.5 Operating modes with TouchDIM
Page 5 and 6: 1 Introduction 1.1 Dimmable lightin
Page 7 and 8: 1.1.3 Reliability/Safety Reliabilit
Page 9 and 10: 2.2 DALI in comparison to 1…10 V
Page 11 and 12: 2.3 DALI installation & features 2.
Page 13 and 14: Note (acc. to DIN VDE 0100/11.85, T
Page 15: 2.4.3 Radio interference suppressio
Page 19 and 20: Figure 7: Three 2-lamp ECGs Correct
Page 21 and 22: 2.5.4 Requirements to be met by the
Page 23 and 24: 2.6 DALI data transfer With DALI, d
Page 25 and 26: The dependency of the relative lumi
Page 27 and 28: • Dimming range 1 %…100 % (the
Page 29 and 30: 2.9.1 The 1…10 V dimming curve Th
Page 31 and 32: • EoL shutdown after Test 2 Asymm
Page 33 and 34: Note: • Only use switches without
Page 35 and 36: Mode 2: The electronic control gear
Page 37 and 38: 3.2.6 Asynchronism/Automation of th
Page 39 and 40: For emergency lighting/voltage loss
Page 41 and 42: 3.3.2 Mains failure at the main dis
Page 43 and 44: Figure 23: DALI parameters that can
Page 45 and 46: Figure 25: Stairwell lighting timer
Page 47 and 48: 3.5.1.4 Control via instabus EIB Di
Page 49 and 50: ) Lower limit An effective lower li
Page 51 and 52: 3.7.1 Inserting and releasing the c
Page 53 and 54: 3.8 Temperature response of dimmabl
Page 55 and 56: 120 110 100 Ta [°C] Tc [°C] Telko
Page 57 and 58: 3.8.2 Color temperature Between the
Page 59 and 60: ECG Lamp T5 T5 T5 T5 CFL CFL CFL CF
Page 61 and 62: (T) curves of T5 lamps 100 90 Relat
Page 63 and 64: Note: • Amalgam and mercury lamps
Page 65 and 66: 5 Dimming of compact fluorescent la
Page 67 and 68:
Numerous applications in the downli
Page 69 and 70:
7 Tender documents QUICKTRONIC ® I
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QUICKTRONIC ® INTELLIGENT DIM (1
Page 73 and 74:
8 Frequently asked questions (FAQ)
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• Can a DALI ECG belong to more t
Page 77 and 78:
8.1.3 DALI to 1…10 V converter
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• Can control and supply lines be
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9 Appendix 9.1 Starting currents an
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Figure 53: QTi DALI/DIM 2x: lines 2
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9.4 Operating parameters of the ECG
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9.6 The DALI standard (IEC 62386) a
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F Fade time and fade rate .........
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S Safe interference voltage gap ...
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DALI â Technical guide - Osram