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Building Technologies Basic documentation LMV37.4... CC1P7546en
7 Basic unit LMV37.4 17.12.2018
7.5.4.3. 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
code
Diagnostic
code
Meaning for the LMV37.4
201
OFF UPr
1 No operating mode selected
2…3 No fuel train defined
4…7 No curve defined
8…15 Standardized speed undefined
16…31 Backup / restore was not possible
Other start preventions:
3 4 Air pressure on – start prevention
4 2 Extraneous light during startup – start prevention
14 64 POC open – prevention of startup
21 64 POC open – prevention of startup (software version
V02.00)
22
OFF S
1 Safety loop / burner flange open – prevention of startup
83 # Speed error VSD
97 # Error relay supervision
0 Safety relay contacts have welded or external power supply
fed to safety relay
No. Parameter
642
Standardized speed
Index 0 = speed 1
Index 1 = speed 2 (internal monitoring)
Fuel 1:
Index 2 = fuel 1: Speed 1
Index 3 = fuel 1: Speed 2 (internal monitoring)
935 Absolute speed
936 Standardized speed
7.5.4.4. Repetition counter
Repetition counters are available for different types of errors. They are used to set the
number of errors permitted until lockout occurs. The last error initiates lockout. When
setting the number of errors to 3, for example, a repetition (restart) takes place after the
first 3 errors, and after the third error, the LMV37.4 initiates lockout.
Note
Setting 16 means an infinite number of repetitions = no lockout.
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