Mean Well Enterprises Co. Ltd. has introduced the DAP-04 DALI to PWM converter. Along with Mean Well’s LED ac-dc power supplies equipped with “3-in-1” dimming, this new product makes DALI control possible on LED lighting fixtures. DAP-04 equipped with both DALI dimming and push-dim functions. When connected to an external DALI controller, it can convert the DALI signal transmitted from the controller to a PWM signal that can be used to control the lighting fixtures through the “3-in-1” dimming interface. Similarly, by adding the external push dimmer, the output PWM signal also can adjust the LED output current according to the different press times of dimmer.
Each output channel of DAP-04 can connect with the dimming control input of up to 20 of Mean Well's LED drivers, which means the 4 output channels on the converter can connect with up to 80 LED drivers. Each channel has an independent DALI address and can be controlled separately, satisfying the demands of intelligent lighting control system that require energy-saving, high efficiency, and flexibility.
Featuring a 90- to 305-Vac input and power consumption of less than 0.5W, the DAP-04 can be cooled by free air convection from -30 to +60 degrees C mbient temperature as required for operating in a closed system. Enclosed by UL 94V-0 rated plastic case and Class II double isolation design (without FG), these units can effectively prevent users from electrical shock. The I/O terminals of DAP-04 are designed with screw-less clamp style terminal block, which allows a more convenient wiring installation.
Other standard functions include built-in relay contact for ON/OFF control of LED PSU. DAP-04 should be used with Mean Well's ac-dc LED drivers which have 3-in-1 dimming function and is suitable for applications including household lighting, office lighting, and indoor LED decorative lighting, and so on that require DALI controlled operation. Other features include: Linear or logarithm dimming curve selectable (meet IEC62386-207); PWM active high or active low selectable; Dimming range: 1% to 100%; Class II power unit, no FG; Meet DALI standards (IEC62386-101,102,207); and certificates include EN61347-1, EN61347-2-11, and EN61058-1.