Siemens LMV50 Series Manual page 49

Building Technologies
CPI Gas+Oil
This input has been extended by the function of a CPI contact for oil valves.
The valve closure contacts of the gas and oil valves must be connected in series and
then to this input.
Gas and oil-fired operation:
In phases 12 to 38 and phases 72 to 78, a check is made to ensure that the input is set
to On (valve closed) and in phases 54 and 60 to Off (valve open).
In standby Off (valve open) leads to a start prevention with a display message.
The display message can be output with a time delay (can be set with parameter
DelayStartPrev).
Parameter PS-VP/CPI (CPI Gas+Oil)
CPI Oil
Is used for checking the oil valves' fully closed position.
To do this, the valve closure contacts of the oil valves must be connected in series and
then
to this input.
The input is active in gas and oil-fired operation.
Oil-fired operation:
In phases 12 to 38 and phases 72 to 78, a check is made to ensure that the input is set
to On (valve closed) and in phases 54 and 60 to Off (valve open).
In standby, Off (valve open) leads to a start prevention with a display message.
The display message can be output with a time delay (can be set with parameter
DelayStartPrev).
Gas-fired operation:
In phases 12 to 38, 54, 60 and phases 72 to 78, a check is made to ensure that the
input is set to On (valve closed).
In standby, Off (valve open) leads to a start prevention with a display message.
The display message can be output with a time delay (can be set with parameter
DelayStartPrev).
Parameter PS-VP/CPI (CPI Oil)
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22.05.2018