Description
The RS 525/23 Universal Dimmer is a KNX device with one dimmer output. The device is installed in an AP 118 Control Module Box or an AP 641 Room Control Box. The bus is connected via a bus terminal block. The actuator electronics are supplied via the bus voltage.
The RS 525/23 can switch and dim resistive loads (e.g. incandescent lamps, high voltage halogen lamps), capacitive loads (e.g. low voltage halogen lamps with intermediate electronic transformers), or inductive loads (e.g. low voltage halogen lamps with intermediate conventional transformers).
After about 5 seconds in an over-load condition the universal dimmer turns itself off permanently. At the earliest 2 minutes after an over-load or short-circuit tripping the dimmer may be turned on again. First send an “off†or a “dimming value =0†command to turn the device off and then turn it on again by sending an “on†or a “dimming value > 0†command.
In a short-circuit condition the dimmer turns the load off for 3 seconds and automatically tries to switch the output on to the currently set dimming value once within 1 minute. If the shortcircuit condition still persists the output is turned off permanently.
Turn the output on again by following the instructions for a permanently turned off output in an over-load condition.
Turn the output on again by following the instructions for a permanently turned off output in an over-load condition.
In the ex-factory settings the influence of ripple control signals is compensated to reduce flickering of the lamp. This measure increases the influence of electrical grid frequency fluctuations on the brightness of the lamp.
A mostly undisturbed operation for an electrical system without a synchronous connection to the electrical grid can be achieved when the ripple control compensation is disabled via the associated parameter. The dimmer becomes less sensible to frequency fluctuations in the electrical system. Yet, ripple control signals will lead to an increased flickering of the load.
On bus voltage failure the current switching status and dimming values are saved for restoration on bus voltage recovery. On bus voltage recovery the configured actions are executed and, if applicable, new status values are reported.
The building site function provided ex-factory enables switching the building site lighting on and off via bus wall switches and actuators, even if these devices have not yet been commissioned with ETS.
When the application program is unloaded with ETS the device does not function.
When the programming button is pressed for more than 20 seconds the device is reset to the ex-factory settings. All configuration settings are lost. The building site function is re-activated.
The device is configured and commissioned with the ETS (Engineering Tool Software) version ETS3 v3.0f or later.