FMS Commissioning
Correction
Factory setting:
Expansion factor
10;
^
1.0, i.e. no weighting
Expansion factor > 10; the correction increases
with rising burner output;
Expansion factor < 10; the correction decreases
with rising burner output.
For details see VMS Commissioning instructions, under Auxiliaries, p. 30.
ATTENTION:
When applying O corrections, make sure that the combustion limits
2
are observed even with the maximum correction applied (100%). For
details see page 67, "Checking the combustion engineering limits”.
Load
Fuel actuator
> 10
Correction range
+ 30 % ... -70 %
!
100 %
Expansion
70 % factor
0 %
Type 2: correction acting
Correction mode: applied to the load axis
on the load axis
This is used if correction is made via a non-linear actuator, e.g. air flap. The
curve's slope is taken into account before calculating the correction. Thus, a
flat curve results in a small correction range, whilst a steep curve results in a
large one.
ATTENTION:
This is only meaningful if the curve rises monotonically.
ATTENTION:
When applying O corrections, make sure that the combustion limits are
2
observed even with the maximum correction applied (100%). For details
see page 67, "Checking the combustion engineering limits”.
Load
Correction
effect
Air actuator
Correction range
+ 60 % ...- 40 %
!
!
64
100 % 60 % 0 %
