Siemens RDF800KN Series

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Siemens RDF800KN.., RDF800KN/VB, RDD810KN/NF Basic documentation CE1P3174en
Smart Infrastructure 2020-02-21
The table below shows the error code and default alarm texts.
Thermostat
Fault information on
the
bus
Prio
rity
Fault
/
s
ervice
Display
Error code
Default fault text
Text adjustable
*)
-
No fault
---
0
No fault
ü
1 Bus power supply
**)
BUS
5000 No bus power supply ---
2 Device address error
ADR
6001 > 1 id device address ---
3 Condensation
CON
4930 Condensation ü
4 External fault input X1
AL1
9001 Fault input 1 ü
5 External fault input X2
AL2
9002 Fault input 2 ü
6 Clean filter reminder
FIL
3911 Dirty filter ü
*)
Default alarm texts are stored in the thermostat’s non-volatile memory and can be adjusted using
the ACS tool.
**)
This error will not be sent via the bus (because there is either no bus, not sufficient bus power
supply, the bus is overloaded or the bus signal is distorted).
· Priority order is 1…6.
· External faults 4…5. If faults are active, AL1 and AL2 display alternately. Only
the fault with the highest priority will be sent via the bus.
A supervisory alarm system may command the thermostat to stop sending fault
signals to the bus using the communication object "Fault transmission"
(disable/enable).
This has no impact on the local display of faults.
After a timeout of 48 hours, the forwarding of fault signals will automatically be
enabled again.
Priority of alarms
Fault transmission