451
Dimming KNX
Specifications
Order No.
P. unit
PS
Specifications
Order No.
P. unit
PS
Gira electrical installation systems
Price system (PS) ≠ 1, 14: reduced discount
KNX system
devices, actuators,
sensors
- The load type can be specified and the dimming principle
defined: Universal (with automatic calibration procedure),
electronic transformer (capacitive/trailing edge), conventional
transformer (inductive/leading edge), LED (leading edge) or LED
(trailing edge).
- Dimming characteristic curve per channel configurable in time
and value range for adaptation to the respective connected load.
- Dimmable range can be set (switch-on brightness; basic
brightness; alternatively: lower dimming limit and upper dimming
limit).
- Performance on receipt of an absolute brightness value can be
set (dimming, brightening, fading).
- Performance during relative dimming up in switched-off state
can be set ( switch channel on, no reaction).
- Central control function using up to 6 switching objects, 6
dimming objects and 6 value objects and collective feedback.
- Switching feedback: Active (transmitting to the bus cyclically or
when there is a change) or passive (object can be read out)
feedback function.
- Brightness value feedback: Active (transmitting to the bus
cyclically or when there is a change) or passive (object can be
read out) feedback function.
- For active feedback objects, the type of update can be set (when
the input object is changed or when the feedback value is
changed). This allows visualizations to be adapted individually.
- Feedback signals for short circuit, overload/mains power failure
and load type (KNX-compliant and extended).
- Reaction to bus voltage failure/recovery and after an ETS
programming operation can be set for each output.
- Logical individual linking function for each output.
- Blocking function can be parametrised for each channel.
Alternative separate forced setting function for each output.
- Time functions (switch-on delay, switch-off delay).
- Staircase light function with advance warning function via
time-controlled reduction of lighting or activation of permanent
lighting.
- Staircase function with time extension or variable staircase time
allocation via communication object.
- Soft ON function and Soft OFF function can be set.
- Automatic switch-off can be set where brightness value < X %
(with individual delay time).
- Can be integrated into light scenes: Up to 64 internal scenes can
be parametrised per output.
- Delay time for scene retrieval can be configured.
- Dimming performance can be set when a new scene is called up
(brightening, dimming, fading).
- Visual feedback when saving a scene.
- Extended scene retrieval.
- Elapsed operating time meter can be activated individually for
each output.
- Elapsed operating time meter as forward meter (with optional
threshold value) or backward meter (with optional starting value).
Logic functions
- The device has 8 internal logic functions.
- Logic gate (AND, OR, exclusive AND, exclusive OR, each with up
to 4 inputs).
- 1-bit to 1-byte converter with input filter, blocking object and
specification of output values.
- Blocking element with filter and time functions and blocking
object.
- Comparator for values with 9 different input data formats and
many comparison operations.
- Limit value switch with hysteresis with upper and lower threshold
values for 9 different input data formats. Including specification
of the 1-bit output values.
- The logic functions have their own KNX communication objects
and can process telegrams from the actuator or other bus
devices.
Technical data
KNX medium:
TP256
Rated voltage:
AC 110 to 230 V, 50/60 Hz
Max. connected load (AC 230 V) per channel
- Light bulbs:
20 to 225 W
- HV halogen lamps:
20 to 225 W
- Wound transformer:
20 to 210 VA
- Tronic transformer:
20 to 225 W
- Wound transformer with
NV-LED:
20 to 100 VA
- electronic transformer with
NV-LED:
typically 20 to 200 W
- HV LED lamps:
typically 1 to 200 W
- Compact fluorescent lamp:
typically 20 to 150 W
Connections
- KNX:
Connection and junction terminal
- Load:
Screw terminals
- Connections:
max. 4 mm²
Dimensions
- Modular widths (MW):
4
Notes
- VDE approval in accordance with EN 60669-1, EN 60669-2-1.
- The maximum connected load depends on the operating mode
selected (leading edge or trailing edge). You will find more
detailed information in the operating instructions.
- Power extension using Gira power boosters.
- Only use up to 95% of the capacity of outputs connected in
parallel. Do not connect compact fluorescent lamps to dimming
outputs connected in parallel. Do not extend dimming outputs
connected in parallel with power boosters.
- Installation on DIN top-hat rail.
- KNX Data Secure compatible.
- Fast application download (long frame support).
- Firmware can be updated using the Gira ETS Service App
(additional software).
Scope of supply
- KNX connection and junction terminal included in the scope of
supply.
