Fault - Siemens AVS75.39 Series User Manual

Temperature alarms
Error history
History 1...10
Reset history
Siemens
Building Technologies
6.19

Fault

When a fault is pending, an error message can be displayed on the info level by
pressing the Info button. The display describes the cause of the error.
Line no. Operating line
6710 Reset alarm relay
No ¦ Yes
When a fault is pending, an alarm can be triggered via relay QX... The QX... relay
must be appropriately configured.
This setting is used to reset the relay, but the alarm is maintained.
Line no. Operating line
6740 Flow temp 1 alarm
6741 Flow temp 2 alarm
6742 Flow temp 3 alarm
6743 Boiler temp alarm
6745 DHW charging alarm
6746 Flow temp cooling 1 alarm
The temperatures are constantly monitored. If an actual value deviates from the
setpoint for a period of time exceeding the time set here, an alarm is delivered,
including display of the associated error message.
Error code 121: Flow temperature heating circuit 1 is too low (par.6740)
Error code 122: Flow temperature heating circuit 2 is too low (par. 6741)
Error code 371: Flow temperature heating circuit 3 is too low (par. 6742)
Error code 126: DHW charging supervision (par. 6745)
Error code 357: Flow temperature cooling circuit is achieved (Par 6746)
The flow temperature is regarded as having been complied with if the deviation
from the setpoint is less than 1°K. If the flow temperature setpoint is reduced by
more than 4K, the monitoring function will be deactivated until the flow temperature
has dropped to the new setpoint.
The function is also passive if the heating circuit pump is off due to an ECO
function or quick setback.
Line no. Operating line
6800...6819 History ...
The basic unit stores the last 10 faults in non-volatile memory. Any additional entry
deletes the oldest in the memory. For each error entry, error code and time of
occurrence are stored.
The ACS tool can be used to display the relevant actual values, setpoints and relay
outputs for each error.
List of error codes is available in Section "List of displays".
Line no. Operating line
6820 Reset history
No ¦ Yes
The error history with the last 10 errors will be deleted.
User manual RVS43.345
The settings in detail
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CE1U2354en_021
2013-09-02