﻿The dimming principle of the dimming channel is specified here.

*universal (with automatic calibration procedure)*: The dimming channel measures itself universally to the connected load type. After programming with the ETS, after bus voltage return (without mains voltage) or after switching on the mains voltage supply of a load output, the actuator calibrates itself automatically to the connected load. The calibration procedure becomes noticeable during ohmic loads by a brief flicker and lasts up to 10 seconds depending on the network conditions.

*electr. transformer (capacitive / trailing edge phase control)*: The dimming channel is preset to trailing edge phase control principle. There is no automatic calibration of the load type. Ohmic loads or electronic transformers can be connected to the output.

*conv. transformer (inductive / leqading edge phase control)*: The dimming channel is preset to leading edge phase control principle. There is no automatic calibration of the load type. Conventional transformers can be connected to the output.

*LED (trailing edge phase control)*: The dimming channel is preset to an optimized trailing edge phase control principle. There is no automatic calibration of the load type. HV LED or compact fluorescent lamps optimized for this dimming principle can be connected to the output.

*LED (leading edge phase control)*: The dimming channel is preset to an optimized leading edge phase control principle. There is no automatic calibration of the load type. HV LED or compact fluorescent lamps optimized for this dimming principle can be connected to the output.
