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Siemens Building Technologies Basic Documentation RVA63.242, RVA53.242 CE1P2373E
Landis & Staefa Division Description of end-user settings 26.03.2001
3.33 Indication of faults
Straightforward checking of plant.
Fault tracing is made easier.
The controller indicates faults that may have occurred in the controller itself or in the
system.
In normal operation, the display shows "Er" if a fault has occurred.
Display Unit
0...255 –
The first entry in the fault list will automatically be displayed on this line.
By pressing , it is possible to switch between fault messages.
The controller can store a maximum of 2 fault messages. The faults message will be
cleared only after the cause of the fault has been removed. If additional faults are
present, they will be stored as soon as storage capacity becomes available.
Faults that can occur on the controller:
Display Description of fault
Blank No fault
10 Outside sensor
20 Boiler temperature sensor
28 Flue gas temperature sensor
30 Flow temperature sensor
40 Return temperature sensor
50 D.h.w. temperature sensor connected to B3
52 D.h.w. temperature sensor connected to B31
58 D.h.w. thermostat
61 Fault room unit
62 Wrong room unit
70 Buffer storage tank temperature sensor B4
71 Buffer storage tank temperature sensor B41
73 Collector temperature sensor
81 Short-circuit LPB
82 Address collision on LPB (same address several times)
86 Short-circuit PPS
100 2 clock masters present
140 Inadmissible LPB device or segment number
146 Inadmissible plant configuration
150 General BMU fault
162 Fault contact H2
Benefits
Description
Setting
Effect
Note
Fault messages
Device faults
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