User Manual

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Siemens RXL39.1 – Room controller CM2N3876en_10
Building Technologies 2015-12-23
Technical design
The RXL39.1 controller consists of a housing base, a housing cover and the
printed circuit board with connection terminals. The controller also has a tool
socket, a service LED and a programming button.
Connection
terminals
Cover
Connection
terminals
80048
Cable restraints
Plug-in connection terminals
for bus
Housing base
Service LED
Programming button
Tool socket
The service LED shows the operational status of the room controller as follows:
Green, flashing
Normal operation.
Red, ON
• Programming mode for address assignment (ACS).
• Fault
Orange / green,
flashing
• Startup phase.
• No application selected.
• Loading.
− Download from ACS.
− Room unit QAX34.3 in HandyTool mode.
OFF
• No supply voltage
• Fault
Other patterns
After switching on the operating voltage, the service LED
flashes in different patterns for 3 to 5 seconds.
If other patterns appear during normal operation, this indicates
an error.
The programming button is used to identify the controller in the commissioning
phase.
Pressing this button causes the red service LED to light up and remain on until
identification of the controller is complete.
Once the programming button has been pressed, the tool overwrites the hardware
address in the room controller.
STOP
Note!
If there are no terminal covers fitted, the programming button may be operated
only by a qualified electrician.
The adjacent terminal may be a live mains voltage conductor.
Service LED
Programming button