Concept
DALI Light Outputs with Power Distribution
The DALI light modules have four Light outputs, which are designed for control and power supply of lights with electronic ballasts, LED drivers, and other control gear with DALI interface.
The Light outputs support:
DALI lighting control
Power distribution (230 VAC)
The four Light outputs share one logical DALI channel.
The 5-pole Light output connector has two terminals for DALI lighting control:
DA+
DA-
These two terminals are where the wires from the DALI bus are connected. The DALI bus is a 2-wire bus, which is used for bi-directional communication. For more information, see Wire Sizes and Lengths .
The DALI light module monitors and controls each control gear device on the DALI bus. Each control gear device is assigned a unique short address, which is used when communicating with the individual device on the bus. The control gear devices can be arranged into up to 16 groups. Each device can be a member of any combination of the 16 groups. For example, a group can be used to change all LED drivers in a room from Off to On.
Up to 32 DALI control gear devices can be connected to the DALI light module. The maximum number of control gear devices per module and per output is also determined by the module's power distribution limitations. For more information, see section “Specifications”.
The power distribution capability means that the module distributes the AC mains voltage (230 VAC) from the Power Input to the control gear connected to the four Light outputs.
The 5-pole Light output connector has three terminals for power distribution:
N (Neutral)
PE (Protective earth ground)
L (Line)
The DALI light module uses a relay to control the power distribution to each Light output, by connecting or disconnecting the AC mains voltage to the output (L terminal). In the figure above, the relay is named K1 for the Light 1 output, K2 for the Light 2 output, and so on.
In the event of a power outage, the relays are set in a predefined state so that the AC mains voltage is connected to the four Light outputs. The relays will remain in that state at startup after a power outage.
The module's AC mains voltage side and low-voltage side (SELV side) are galvanically separated by means of isolation circuitry.
The module's energy metering circuitry is reserved for future use (power consumption monitoring).
Specifications
Outputs
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4, Light 1 to Light 4
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| The four outputs share one DALI channel. | |
Output terminals
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N, PE, L, DA+, and DA-
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DALI bus voltage
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18 VDC
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Maximum supply current
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250 mA
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Guaranteed supply current
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64 mA
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Power distribution
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230 VAC (same voltage as power supply)
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Maximum 5 A load per output
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Maximum 10 A total load for the 4 outputs
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Maximum 165 A inrush current (<20 ms) per output
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Maximum 800 A inrush current (<200 µs) per output
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RP Series Expansion Modules and Multi-sensors
Light Modules
RP-C-EXT-DALI-M-PD
Wire Sizes and Lengths
RP Series Expansion Module Pluggable Connectors