Alarm Upon Start Prevention; Possible Start Preventions - Siemens LMV27.100x2 Basic Documentation

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3. Resetting via the ACS410 PC software
Refer to the documentation covering the ACS410 PC software (J7352).
Error Diagnostic
code code
167 3
7.5.3.2.

Alarm upon start prevention

If start prevention occurs, it is shown on the display of the AZL2.
Start prevention takes place only when a heat request is delivered and when one of the
startup criteria is not fulfilled.
The time to elapse from start prevention to display on the AZL2 is set to a fixed value of
5 seconds.
In addition, it is possible to indicate start preventions via the alarm output. This function
can be activated per parameter.
No. Parameter
Alarm in the event of start prevention
210 0 = deactivate
1 = activate
If Alarm in the event of start prevention is activated via the alarm relay, start prevention
and lockout can only be distinguished via the display on the AZL2. Start preventions are
displayed as Err:, lockouts as Loc:.
Note
If the reset contact X8-04 Pin 1 on the LMV27 is activated during a startup prevention,
the LMV27 will be manually locked.
The time from occurrence of start prevention to indication by the alarm contact equals
the time to the display on the AZL2.
7.5.3.3.

Possible start preventions

On the normal display, error code 201 is translated to text display OFF UPr (UPr =
unprogrammiert = not programmed); the numerical value appears in the error history.
Error Diagnostic
code code
201 1
OFF UPr
2...3
4...7
8...15
16...31
3 4
4 2
14 64
21 64
22 1
OFF S
97 #
0
Basic Documentation LMV27...
7 Basic unit LMV27
Meaning for the LMV27
Manual lockout via ACS410 PC software
Meaning for the LMV27
No operating mode selected
No fuel train defined
No curve defined
Standardized speed undefined
Backup / restore was not possible
Other start preventions:
Air pressure ON – start prevention
Extraneous light during the startup phase- start prevention
POC open - start prevention
POC open - start prevention (software version V02.00)
Safety loop / burner flange open - prevention of startup
Error relay supervision
Safety relay has welded or extraneous voltage present at
the safety relay
CC1P7541en
17.12.2018