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Siemens RXB (KNX) Applications library CLC and RAD description of functions for CC-02 CM110384en_03
Building Technologies KNX information 28 Feb 2009
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 (r 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 (r 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).
Orange / green,
flashing
•
Startup phase (see above 12.1).
•
No application selected (see 4.1).
•
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.
Notes