Prioritization Of Load Controller Sources - Siemens LMV37.4 Series Basic Documentation

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Building Technologies

9.7 Prioritization of load controller sources

To simplify configuration of the LMV37.4, the load controller source need not be
selected. The LMV37.4 automatically detects the available load controller sources and
selects them. If several sources are used, they are selected according to the following
priorities:
Parameter 942 Priority
1 highest
1 2
2 3
3 4
4 5
5 6 lowest
Note!
When the Switching back to pilot function is used, the load controller inputs OPEN
CLOSE (X5-03 pin 2 and 3) are not available (refer to chapter Switching back to pilot).
Analog input X64 is used as the load controller source in this case.
The active load controller source can be read out via parameter 942.
No. Parameter
Active load controller source
1 = output during curve settings
2 = manual output
942
3 = default output via building automation
4 = default output via analog input
5 = external load controller via contacts
Basic documentation LMV37.4...
9 Connection to load controllers
Active load controller source
Chapter Load controller ON-contact X5-03, pin 1
When the input is activated, the other load
controller sources are assessed according to
their priorities. When the input is deactivated, the
burner is off
Chapter Load output with curve settings
Chapter Manual output
Chapter Default output via building automation
X92
Chapter External load controller via analog input
X64 pin 1/pin 2
Chapter External load controller via contacts X5-
03, pin 2/pin 3
CC1P7546en
17.12.2018