Makeup Of Error History; Lifecycle Function - Siemens LMV37.4 Series Basic Documentation

Deleting the error history

Building Technologies Division
Industry Sector

19.2 Makeup of error history

Parameter Index Description
701 Current error state, can also be error-free
Error code (200 = error-free)  refer to Error code list
.01
Diagnostic code  refer to Error code list
.02
Error class  error classes
.03
Error phase: Phase in which error occurred  sequence
.04
diagrams
.05 Startup counter: Startup meter reading (parameter 166) at
which the error occurred
.06 Output: Burner output at which the error occurred
702 .01..06 Latest error in the history
.
.
.
725 .01..06 Oldest error in the history
Both the service menu and the parameter setting menu show the error history.
The display on the service menu can be deleted in a way that the only errors shown are
those that occurred after the deletion.
The error history on the parameter setting menu cannot be deleted.
For the deletion, parameter 130 must be set to 1 and then to 2 within 6 seconds.
When the parameter returns to 0, the deletion process is completed.
No. Parameter
Delete display of error history
To delete the display: Set parameter to 1, then to 2
130
Return value 0: Job successfully completed
Return value -1: Timeout of 1_2 sequence

20 Lifecycle function

If the startup counter exceeds a defined threshold, a display error code is set and
displayed. The error can be acknowledged.
The display code is always set in standby (when there is no heat request).
Hence, the moment the threshold is exceeded, the user is notified that the end of the
lifecycle will soon be reached.
Error Diagnostic
code code
116 0
Note
The unit should be replaced when this message appears.
Basic documentation LMV37.4...
20 Lifecycle function
Meaning for the LMV37.4... system
Designed lifecycle exceeded (250,000 startups)
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CC1P7546en
20.09.2013