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Knx Information; Reset And Startup Response; Led Flashing Pattern - Siemens Desigo RXB Technical Manual

Technical manual.
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Notes
Siemens
Building Technologies
12

KNX information

12.1

Reset and startup response

A reset is initiated under the following circumstances:
• Failure of the processor (e.g. watchdog).
• After a power failure.
• After a bus power failure.
• Upon completion of a self test (using communication object Status request ).
• Via ETS (without startup delay)
– After downloading the physical address
– After downloading the parameters
– Via ETS (menu Commissioning, Reset ).
• After parameterization in ACS.
• After exiting Parameterization mode in the HandyTool.
• After Test with the HandyTool
The application is restarted after every reset. Depending on the controller address, this
may take 1 ... 255 s.
Then, the bus connection is opened and all connected valve actuators are
synchronized. This takes the following time depending on application and actuator type:
Typically 170 s for closing (runtime + 10%) for motorized actuators.
300 s ON and 300 s OFF (3rd party: 400 + 400 s) for thermal actuators.
The application is placed in a safe state. Any outputs that are not synchronized are not
operated (triac outputs = 0, and relay = open).
Normal operation is resumed after synchronization.
• When the controller exits test mode, only a soft reset is carried out:
– Valve actuators are synchronized.
– The control algorithm but not the entire application is restarted.
• Each time the control sequence reaches 0% or 100%, a limit position
synchronization takes place.
– For motorized actuators close or open during (runtime + 10%).
– 300 s ON and 300 s OFF (3rd party: 400 s) for thermal actuators.
12.2

LED flashing pattern

An LED is located at the controller's bottom right indicating the operating state by
various flashing patterns:
Green, flashing
Normal operation.
Red, flashing
Programming mode for address assignment (ETS3 / ACS).
• Startup phase (see above 12.1).
Orange / green,
• No application selected (see 4.1).
flashing
• Loading.
– Download from ETS3 or ACS.
– Room unit QAX34.3 in HandyTool mode.
Other patterns
After switching on the operating voltage, the controller flashes for 3
to 5 seconds in different patterns.
If other patterns appear during normal operation, this indicates an
error.
RXB (KNX) Applications library
KNX information
CLC and RAD description of functions for CC-02 CM110384en_03
117/140
28 Feb 2009

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