Flue Gas Supervision - Siemens LMS14 User Manual

Flue gas temp
output red
Flue gas temp
swi-off limit
Flue gas superv
shutdown
Flue gas superv st prev
tme
Flue gas temp output
limit
Fl'g superv time con rel
mod
Plausibility check of
sensor
230/617
Building Technologies Division
6.11.20

Flue gas supervision

Line no. Operating line
2473 Flue gas temp output red
This parameter defines the flue gas temperature above which output reduction
becomes active.
Line no. Operating line
2474 Flue gas temp swi-off limit
If the flue gas temperature exceeds the limit set here, the burner is shut down.
Line no. Operating line
2476 Flue gas superv shutdown
Start prevention
Lockout position
This parameter is used to select the way the LMS14... shall respond if the burner is
shut down due to too high flue gas temperatures.
Line no. Operating line
2477 Flue gas superv st prev tme
This parameter is used to set the period of time during which start is prevented upon
shutdown due to too high flue gas temperatures.
Line no. Operating line
2478 Flue gas temp output limit
This parameter is used to set the flue gas temperature level above which the burner's
output is limited.
Line no. Operating line
2479 Fl'g superv time con rel mod
This parameter is used to set the filter time constant for filtering falling flue gas
temperatures. The filter is used to delay the release of output when output limitation is
active.
If a configuration with flue gas sensor is selected, the LMS14... must read in a valid flue
gas temperature value. Otherwise, either start prevention with message code or lockout
will be initiated (Flue gas superv shutdown (2476)).
The lockout position is only reached when a tolerance time of 10 minutes has elapsed.
As long as the lockout position is not reached, the burner is prevented from starting up
and the status code appears.
User Manual LMS14...
6 The settings in detail
CC1U7471en
07.05.2014