Siemens LMV37.4 Series - Error with Safety Shutdown; General Information; Prevention of Startup; Safety Loop

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Building Technologies Basic documentation LMV37.4... CC1P7546en
23 Operation of LMV37.4 via the AZL2 17.12.2018
23.1.4.4. Error with safety shutdown
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The display shows Err:.
The LMV37.4 initiates safety shutdown.
The display shows current error code c: alternating with
diagnostic code d:.
Press
/
reset
to return to the normal display.
Example: Error code 12 / diagnostic code 0
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23.1.4.5. General information
The LMV37.4 displays an event which does not lead to
shutdown.
The display shows current error code c: alternating with
diagnostic code d:.
Press
/
reset
to return to the former menu.
Example: Error code 111 / diagnostic ode 0

Note
For meaning of the error and diagnostic codes, refer to chapter Error code list.
When an error has been acknowledged, it can still be read out from the error history.
23.1.4.6. Prevention of startup
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OFF UPr appears if a LMV37.4 was not programmed or
not completely parameterized, or LMV37.4 operating
mode was reset or changed.
The display shows OFF UPr.
23.1.4.7. Safety loop
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OFF S appears if a LMV37.4 safety loop and / or burner
flange contact is open, and a load controller ON signal is
present.