Startpoint Operation - Siemens LMV50 Series Manual

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6.4.4 Startpoint operation

When ignition has taken place and the flame has stabilized, the actuators must be
brought to their ratio control positions. To do this, the LMV5 approaches the positions of
the curvepoint, which was set using the StartPoint Op parameter.
This enables a burner with a high modulation range during operation, which would not
burn when started cold from the lowest modulation output, to be started with a higher
initial output (determined by the StartPoint Op) parameter.
Parameter StartPoint Op
If the MinLoadGas / MinLoadOil parameter was set to a value above the StartPoint Op,
as soon as the StartPoint Op has been reached, the actuators move on further to the
MinLoadGas / MinLoadOil positions.
Basic Documentation LMV5...
6 Fuel-air ratio control (FARC)
CC1P7550en
22.05.2018