Correcting 0-10V LED dimming with digital drivers: Page 3 of 4

March 05, 2019 //By Russ Sharer
Correcting 0-10V LED dimming with digital drivers
Solid-state luminaires have taken the market by storm due to the amount of energy they save. LED luminaires use one-third the power of fluorescent lighting and less than half the power of incandescent lighting. Dimming capability can increase energy savings even more, while improving the work environment for tenants. But the problem is that 0-10V LED dimming is not truly standardized. If you mix and match LED luminaires from different vendors you will likely get different dimming profiles, which can really be a problem especially for lighting retrofit projects.

Programmable drivers deliver uniformity

Software and an intelligent LED driver
can enable customized programming of a dimming curve.

With digital LED drivers all the settings, including dimming, can be software controlled. The driver hardware has on-board intelligence as well as programmability so luminaires can be grouped and programmed, then regrouped and reprogrammed to accommodate updates and changes without disruption. This configuration also enables complex zoning, which can improve functionality and energy savings.

Fulham’s intelligent driver with handheld programmer
for field or production line programming.

Digital LED drivers can be programmed at the factory, at the warehouse, or on-site. Using handheld devices, luminaires can be configured to ensure that luminaire brightness, hue, and other characteristics match the other luminaires either installed or being added, as well as programming dimming profiles for uniformity. To simplify installation and software updates it makes more sense to connect luminaires into a single, centrally managed infrastructure.

Rather than worrying about control wiring, the new generation of LED drivers are equipped with wireless options that enable two-way communications for dimming and other controls. Bluetooth

Bluetooth mesh is a standard way to interconnect
lighting elements.

mesh, for example, is becoming increasingly popular with luminaire manufacturers because it is an open standard and easily scalable. Since the wireless mesh structure is based on Bluetooth, wireless driver compatibility can be assured and the broadcast mesh infrastructure is scalable and allows you to add or remove devices without disruption. Once it is connected, the entire luminaire ecosystem can be managed by software from a central dashboard to ensure consistent luminaire performance, including 0-10V dimming.

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