Installation and operating instruction
Combustion manager W-FM 100 und W-FM 200
6 Operation
83054802 1/2018-07 La
147-228
6.15.3 Define temperature sensor
Param & Display
Flue Gas Recircula-
tion
FGR-sensor
The FGR sensor connected is defined in parameter
FGR-sensor
.
The FGR temperature sensor is connected to input X60 as standard [ch. 3.3.20].
For temperature compensated operation, the FGR temperature sensor should be
positioned as close as possible to the FGR damper.
Parameters
Function
X86PtNi1000
The temperature sensor connected to the O
2
module is
also used for the FGR function [ch. 3.3.23].
Not suitable for temperature compensated operation.
X60 Pt1000
X60 Ni1000
Pt1000 sensor at terminal X60:3/4
Ni1000 sensor at terminal X60:3/4
The corresponding sensor must not be defined in the
menu
Sensor Select
of the load controller
6.15.4 FGR sensor temperature
Param & Display
Flue Gas Recircula-
tion
actTmpFGR-sensor
Parameter
actTmpFGR-sensor
shows the current temperature at the FGR tem-
perature sensor.
6.15.5 FGR release
Param & Display
Flue Gas Recircula-
tion
ThresholdFGR…
DelaytimeFGR…
The parameters stipulate when the FGR function is released.
After entering phase 60 (operating position 1) actuator Aux3 initially remains in igni-
tion position. if the release criteria is met, Aux3 drives on the compound curve.
Depending on the FGR operating mode set, release is either effective via the time
or the temperature at the FGR sensor.
The release can be set separately for each fuel.
Parameters
Function
ThresholdFGR Gas
ThresholdFGR Oil
When the FGR sensor reaches the temperature set, the
W-FM releases the FGR function. For this, the FGR
sensor must be placed in the flue gas pipe or the FGR
damper must be slightly open in ignition position.
Only for operating mode
Temperature
.
DelaytimeFGR Gas
DelaytimeFGR Oil
The W-FM releases the FGR function in phase 60 once
the time set has elapsed.
The time depends on the the warm-up phase of the plant.
Criteria for this is a constant flue gas temperature at a
consistent capacity.
For operating mode:
Time
Temp.comp.
TCautoDeact
recommended setting: 60 seconds