69
8 Control Mode
As soon as one of the following incidences happen, the parameter set ignition sequence of
the fuel is executed without switching on the ignition transformer:
– Boiler pressure or boiler temperature have lapsed to that point, where the burner would
start again (with internal firing rate controller)
– As soon as the LSB contact (terminal 1) opens again.
– As soon as the command is transferred by fieldbus.
This may occur after valve leakage test, before operation, with fuel gas and without the trans-
former leading time (analogue changing by pilot burner ignite the new fuel)
NOTICE
At combustion plants with just one flame detector, ensure, that the main flame is always ignit-
ed by the pilot flame. Otherwise use one flame detector for the main flame and one for the pilot
flame.
If the "Burner ON" signal will be removed during stand-by mode, the Gerät switches OFF. This
shut-off proceeds like a shut-off out of the modes BASE FIRING RATE/CONTROL with all it’s
parameter set procedures.
In oil operation the output for the oil pump stays active.
LSB module address 31 input 1
NOTICE
Since it's not sure how long the STANDBY mode applies, a separate pilot flame monitoring
must be approved for continuous operation, or main flame and pilot flame are monitored to-
gether with one flame scanner, approved for continuous operation.
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