Product overview
KL6811
11
Version: 2.0.0
• fully digital switching of lamps and similar equipment.
• all main manufacturers of ballasts support DALI
The KL6811 DALI Master Terminal from Beckhoff closes the gap between lighting controller and lamp and
enables the connection of up to 64 DALI devices (DALI slaves). The KL6811 is integrated into the
BECKHOFF Bus Terminal system as a normal Bus Terminal and is therefore fieldbus-independent. The
higher-level Bus Coupler transfers the data from the DALI master terminal to the controller. The DALI power
supply unit integrated in the KL6811 supplies the DALI bus. No further components are required for the
operation of the DALI line.
During the start-up phase, the KL6811 searches for connected DALI slaves and supports the user during
commissioning of the system. The
configuration software can be used to parameterize the
DALI master terminal from a PC. The parameterization takes place via the fieldbus or via a RS232 interface,
which are connected to the configuration interface of the higher-level Bus Coupler.
DSI
The KL6811 can also be operated as a DSI master. The Digital Serial interface (DSI) is an even simpler bus
system for lighting control. The DSI master sends digital light intensity values serially to the DSI slaves. The
brightness of the slaves can be set between 1% and 100%. The assignment of the brightness to the control
values is logarithmic, so that a human observer sees a uniform increase in brightness when the control
values are increased linearly. The slaves can be switched to dark by setting the control value to 0, without
having to switch off the mains voltage.
2.4
LED indicators
Fig. 2: KL6811 LEDs
LED
No.
Meaning
RUN
A
on
Data transmission on the K-bus
Bus
B
flashing
Activity: Data transfer on the DALI/DSI bus
on
No power supply (24 V
DC
) for the power contacts
DALI / DSI
C
on
Operating mode: DALI mode
off
Operating mode: DSI mode
Error
D
on
in DALI mode: Overload of the internal DALI power supply
in DSI mode: DSI feedback
