Basic Documentation

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Siemens Modular Heating Controller RMH760B CE1P3133en
Building Technologies 13 Function block miscellaneous 2017-09-29
13.3.2 Fault handling
When leaving the "Commissioning" menu, a check is made to see if the outside sensor
is connected or a sensor value is received via bus. If there is no outside temperature, or
in the case of a short-circuit, fault status message "Outside temp sensor error" will
appear. Internally, the controller continues to operate using 0 °C as a backup value.
If outside temperatures from other outside temperature zones are available via bus,
they will be used as backup values until the error has been rectified.
Only one outside temperature may be present in the same zone. If several controllers
transmit their outside temperature in the same zone, fault status message ">1 outside
temp sensor HC 1" (or HC 2 or HC 3) will be delivered.
Number
Text
Effect
10
Outside temp sensor
error 1
Nonurgent message; must not be
acknowledged
13
Outside temp sensor
error 2
Nonurgent message; must not be
acknowledged
16
Outside temp sensor
error 3
Nonurgent message; must not be
acknowledged
11
>1 outside temp sensor
HC 1
Urgent message; must be acknowledged.
More than one outside sensor in the same
outside temperature zone.
14
>1 outside temp sensor
HC 2
Urgent message; must be acknowledged.
More than one outside sensor in the same
outside temperature zone.
17
>1 outside temp sensor
HC 3
Urgent message; must be acknowledged.
More than one outside sensor in the same
outside temperature zone.
12
Outside sensor 1 simul
active
Nonurgent message; must not be
acknowledged
15
Outside sensor 2 simul
active
Nonurgent message; must not be
acknowledged
18
Outside sensor 3
simulation active
Nonurgent message; must not be
acknowledged
20
Solar intensity sensor
error
• Solar intensity sensor not connected
• Bus communication interrupted
• Solar zone not correctly set (transmitter and
receiver must use the same solar zone)
Nonurgent message; must not be
acknowledged
21
>1 solar intensity sens
in zone
More than one solar intensity sensor in the
same solar zone.
Urgent message; must be acknowledged
30
Wind speed sensor error • Wind speed sensor not connected
• Bus communication interrupted
• Wind zone not correctly set (transmitter and
receiver must use the same wind zone)
Nonurgent message; must not be
acknowledged
31
>1 wind speed sensor in
zone
More than one wind speed sensor in the
same wind zone
Urgent message; must be acknowledged
Fault status messages