Concept
DALI Inputs/Outputs with Power Distribution
The DALI light modules have four DALI inputs/outputs, which are designed for control and power supply of DALI light control gear such as lights with electronic ballasts, LED drivers, and other control gear with DALI interface as well as connection of DALI input devices such as sensors and push-buttons. Outputs not used for DALI lighting control can instead be configured and used for relay control of non-DALI lights on/off.
The four DALI inputs/outputs are labeled Light 1 to Light 4.
The DALI inputs/outputs support:
DALI lighting control
Power distribution (230 VAC)
Relay control of non-DALI lights
The four DALI inputs/outputs share one logical DALI channel.
The 5-pole DALI input/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 the DALI control gear and input devices on the DALI bus. Each DALI control gear device is assigned a unique short address, which is used when communicating with the individual device on the bus. The DALI control gear and input devices can be arranged into up to 16 DALI groups. Each device can be a member of any combination of the 16 groups. For example, a DALI group can be used to change all LED drivers in a room from Off to On.
A DALI light group can include lights connected to different outputs. For example, a DALI light group can include one or more of the lights connected to the outputs Light 2 and Light 3. To simplify commissioning of DALI lights connected to the same output, you can use a DALI channel group (instead of a DALI light group) to control all the lights as one logical light. For example, a DALI channel group can be used to control all the lights connected to the Light 1 output. A DALI channel group claims one output and one of the 16 group addresses. For more information, see Simplified DALI .
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 DALI input/output is also determined by the module's power distribution limitations. For more information, see section “Specifications”.
Up to 16 DALI input devices in total can be connected to the DALI light module. Each input device supports up to four sensors or buttons.
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 DALI inputs/outputs.
The 5-pole DALI input/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 DALI input/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.
To save energy when all DALI lights connected to the same output (for example, Light 1) are off, you can configure the relay (K1) for that output to automatically open to disconnect the power to the electronic ballast or LED driver for the lights. For more information, see Simplified DALI .
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 DALI inputs/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 also has energy metering circuitry that supports the measurement of the energy consumption for the total load connected to the module. For more information, see RP Controller Expansion Module Energy Metering .
Outputs that are not used for DALI lighting control can instead be used for relay control of non-DALI lights on/off. For example, if the outputs Light 1, Light 2, and Light 3 are used for controlling DALI lights while the Light 4 output is unused, the Light 4 output can be used for controlling a non-DALI light, by configuring the relay (K4) for that output for on/off control. For more information, see Simplified DALI .
Specifications
Inputs/outputs
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4, Light 1 to Light 4
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| The four inputs/outputs share one DALI channel. | |
Input/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 Controller Expansion Modules
Light Modules
RP-C-EXT-DALI-M-PD
Wire Sizes and Lengths
RP Controller Expansion Module Pluggable Connectors
RP Controller Expansion Module Energy Metering
Simplified DALI