KNX GIRA User Manual

Dimming actuator
Choose power boosters that are suitable for the dimmer and load. Program the operation
with Universal power extensions in the device or – with devices up to version
V01
– set
the maximum brightness to 90 %. For more information please see instructions of the re-
spective power pack.
Changing connected load type
When changing the connected load, e. g. replacement of a connected luminaire. The dimming
actuator only calibrates itself again after disconnection of the mains voltage and load.
CAUTION!
Risk of destruction if the preset dimming principle and connected load do not match.
The dimmer and load may be destroyed.
Before changing the dimming principle, observe load type.
Before changing the load type, make sure that the dimming principle is correct.
￭ Disconnect load circuit.
￭ Disconnect mains voltage.
￭ Connect changed load.
￭ Program dimming actuator to the new load type.
Connecting lamp load up to 950 W
Only possible with dimming actuator 4-gang: Several dimmer outputs can be combined for dim-
ming greater loads.
Figure5: Parallel switching of dimmer outputs – connection example
Do not connect any LED lamps or compact fluorescent lamps to dimmer outputs switched in
parallel.
Only utilize parallel-switched outputs up to 95 % each.
Observe delivery state. Before connecting and switching on, program the dimming actu-
ator to the changed output configuration.
7 / 16
32575362 10867485 04.12.2019

KNX GIRA Specifications

General

Protection Class	IP20
Ambient Temperature	-5 °C to +45 °C
Communication Protocol	KNX
Mounting	DIN Rail
Number of Channels	Depends on model