K-BUS
®
KNX/EIB
Dimming Actuators
9
1.4. LED Dimming Actuator, 4fold, 350mA
The dimmer with LED constant current drive can drive LED directly, has four channels, each channel is
independent and with two independent output. The output current of each channel can be set by linked switch
current button and channel switch current button and can output 350mA/700mA or 700mA/1A. ——
needs
attention when the output current exceeds the rated current of the load, the load probably will burn out, for
example, cannot use a 700mA output to drive 350mA LED. Meantime, in the case of full load, if all LEDs are
350mA, the dimmer can output 8 folds, but if some LEDs are 700mA or 1A, it cannot output 8 folds in some
configuration, or the LED cannot reach expectant brightness value. The details are in section 3.4.
When the output current is set manually, its value can be known via relevant indicators, the details in section
3.4.
The output can connect with some small power dimming LED lights. These LEDs can be switched, dimmed,
recall scene or other operations via the bus.
The devices adopt screw terminals to achieve electrical connection; the connection to the KNX bus is
established via a bus connecting terminal. The input need connect a 12V~48VDC operation voltage. The
following list provides a functional overview:
◆
Switching the LED light
◆
Relative dimming
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Absolute dimming
◆
Status report, error report
◆
Setting 15 scenes
◆
Staircase lighting function
◆
Bus recovery (or reset) function
◆
Preset value and modify preset value functions
◆
Set output current for per channel manually
◆
Switch/relative dimming via manual buttons
The above function of parameters to configure and use are described in the chapter 5. The device has own
database file (.vd4) (KA/D 04.L1.1). There is added a manual operation function in the normal dimming mode, it
is invalid in the staircase lighting mode. Switch via a short operation of manual buttons, relative dimming via a
long operation, and in the case of the bus voltage fail the manual operation is invalid.