Installation and operating instruction
Combustion manager W-FM 100 und W-FM 200
6 Operation
83054802 1/2018-07 La
98-228
6.10.1 O2 controller operating mode
Param & Display
O2Ctrl/Limit
GasSettings
OilSettings
Operating mode
or
Param & Display
SystemConfig
O2Ctrl/LimitGas
O2Ctrl/LimitOil
Using operating mode:
the O
2
controller and O
2
-monitor can be activated or deactivated,
the behaviour when a fault occurs can be defined.
The operating mode can be set separately for each fuel.
Deactivating manually (
man deact
)
Parameter
man deact
deactivates the O
2
controller and O
2
monitor and the
burner operates to the compound curves. This parameter is only used to create the
compound curve during commissioning, it is not suitable for normal operation.
O
2
monitor only (
O2 Alarm
)
Parameter
O2 Alarm
only activates the O
2
monitor.
If the O
2
sensor has not reached the operating temperature at burner start, a start
prevention is initiated. If the O
2
monitor is triggered or if an O
2
fault occurs, the
W-FM initiates a controlled shutdown with single repetition, then lockout occurs.
O
2
controller and O
2
monitor (
O2Control
)
Parameter
O2Control
activates the O
2
controller and O
2
monitor.
If the O
2
sensor has not reached the operating temperature at burner start, a start
prevention is initiated. If the O
2
monitor is triggered or if an O
2
fault occurs, the
W-FM initiates a controlled shutdown with single repetition, then lockout occurs.
Automatically deactivate control (
conAutoDeac
)
Parameter
conAutoDeac
activates the O
2
controller and O
2
monitor.
The burner starts before the O
2
sensor has reached operating temperature. O
2
trim
only starts once the operating temperature has been reached and the sensor test
has been successfully carried out.
If the maximum O
2
monitor is triggered or if an O
2
fault occurs, the W-FM changes
over to operating mode
auto deact
.
If the minimum O
2
monitor is triggered the W-FM drives back to the compound
curves. After a time of 3 times Tau the O
2
content is tested again. The time con-
stant Tau is determined automatically during standardisation [ch. 6.10.4].
When the O
2
content exceeds the minimum limit the W-FM releases O
2
trim.
If the O
2
content drops below the minimum limit, the W-FM initiates a safety
shutdown with repetition. The number of repetitions can be set in parameter
NumMinUntilDeact
, see [ch. 6.10.2]. If the number of repetitions is ex-
ceeded, the W-FM changes over to operating mode
auto deact
.
