4 Channel Constant Current LED DALI Dimmer

Features

• 4-channel constant current DALI LED Dimmer with digital display, available in 150-500mA or 350-1200mA per channel.
• Supports 1 DALI address and selectable dimming modes: DT6, DT8-TC (color temperature), DT8-RGB, or DT8-RGBW.
• Complies with DALI standard protocols IEC 62386-102, IEC 62386-207, IEC 62386-209, ensuring compatibility with other DALI products.
• DALI address can be manually assigned and displayed numerically, or automatically assigned by a DALI master controller.
• Features PWM digital dimming with a standard DALI logarithmic dimming curve.
• Selectable PWM frequencies: 1000Hz, 2000Hz, 4000Hz (default), or 8000Hz.
• Includes overheat and short circuit protection with automatic recovery.
• Equipped with a fast self-testing function.

Technical Parameters

LED Current Selection

DA4-CM (150-500mA)

DA4-CM (350-1200mA)

Mechanical Structures and Installations

The dimmer features two groups of DALI signal input. The DALI bus does not require distinction between positive and negative polarity.

Physical dimensions are approximately 170mm (length) x 50mm (width) x 23mm (height). Mounting is facilitated by an installation rack.

Wiring Diagrams

DA4-CM for Single Color (C-1)

Connect the DALI Master to the DALI input terminals. Connect the LED output terminals to the LED load. The power supply (12-48VDC Constant Voltage) connects to the AC input (AC100-240V, 50/60Hz). This configuration drives 1-13 LEDs per channel across 4 channels. All four output channels provide the same output.

DA4-CM for Dual Color (C-2)

Similar wiring to single color. The DALI Master connects to the DALI input. LED outputs connect to the dual-color LED load. Power supply connects to AC input. This configuration drives 1-13 LEDs per channel across 4 channels, with channels 3/4 having the same output as channels 1/2.

DA4-CM for RGB (C-3)

Connect the DALI Master to the DALI input. LED outputs connect to the RGB LED load. Power supply connects to AC input. This configuration drives 1-13 LEDs per channel across 3 channels, as the 4th channel has no output.

DA4-CM for RGBW (C-4)

Connect the DALI Master to the DALI input. LED outputs connect to the RGBW LED load. Power supply connects to AC input. This configuration drives 1-13 LEDs per channel across 4 channels independently.

Operation

Output Current Setting

Before connecting the LED load, set the correct output current. Simultaneously press and hold the [M button] and the [Left arrow button] for 2 seconds to enter the output current setting mode.

• For DA4-CM (150-500mA): Short press the [Left arrow button] or [Right arrow button] to cycle through 150mA ("C15"), 200mA ("C20"), 250mA ("C25"), 300mA ("C30"), 350mA ("C35"), 400mA ("C40"), 450mA ("C45"), or 500mA ("C50").
• For DA4-CM (350-1200mA): Short press the [Left arrow button] or [Right arrow button] to cycle through 350mA ("C35"), 500mA ("C50"), 600mA ("C60"), 700mA ("C70"), 800mA ("C80"), 900mA ("C90"), 1050mA ("CA5"), or 1200mA ("CC0").

Press the [M button] or wait for 10 seconds to exit the setting.

Setting the Light Type

When using the dimmer for the first time, set the light type according to your application needs. Press and hold the [M button] for 2 seconds to enter the light type setting mode.

• Press the [Left arrow button] or [Right arrow button] to switch between single color ("C-1"), dual color ("C-2"), RGB ("C-3"), or RGBW ("C-4") light types.
• Short press the [M button] or wait for 10 seconds to exit the light type setting.

Light Type Setting Instructions:

• C-1 (DT6 dimming): All 4 channels have the same output.
• C-2 (DT8-TC): Channels 3/4 have the same output as channels 1/2.
• C-3 (DT8-RGB): The 4th channel does not output.
• C-4 (DT8-RGBW): All 4 channels output independently.

Setting DALI Address via Buttons

Long press the [Left arrow button] or [Right arrow button] for 2 seconds to prepare for setting the DALI address. Then, use the [Left arrow button] or [Right arrow button] to set the desired start DALI address. Short press the [M button] or wait for 10 seconds to quit the DALI address setting.

• The DALI address can be manually assigned from 00 to 63 (FF is also mentioned but typically 00-63 for standard DALI addressing).
• By factory default, no DALI address is assigned, and the digital display shows "AFF".

DALI Address Assigned by DALI Masters

DALI addresses can also be assigned automatically by a DALI Master controller. Refer to the user manual of the specific DALI Master for detailed operations. During address assignment by the DALI master, the digital display will show "AAU". After the address is assigned, the digital display will show the start DALI address as "Axx", where "xx" ranges from 00 to 63. If the DALI master assigns addresses in a discontinuous manner, the digital display might show "Uxx" for the start address.

Setting PWM Frequency

Simultaneously press and hold the [M button] and the [Left arrow button] for 2 seconds to prepare for setting the PWM frequency.

• Short press the [Left arrow button] or [Right arrow button] to switch between 1000Hz ("F10"), 2000Hz ("F20"), 4000Hz ("F40"), or 8000Hz ("F80").
• Note: Higher PWM frequencies may result in lower output current and higher power noise but are more suitable for video recording to avoid flickering.

Short press the [M button] or wait for 10 seconds to exit the setting.

Restore Factory Default Parameter

Long press the [Left arrow button] and [Right arrow button] for 2 seconds to restore factory default parameters. The display will show "RES".

• Factory default parameters include: no DALI address assigned, DT8-RGBW light type, and 4000Hz PWM frequency.
• Long press the [M button] and [Left arrow button] for 2 seconds to enter the fast self-testing mode. The output channels will turn on sequentially, followed by all channels turning on simultaneously.

Safety & Warnings

• DO NOT install the dimmer with power applied to the device.
• DO NOT expose the device to moisture.