FMS Commissioning
O regulation
2
Automatic functions control
during operation
Checks during burner start-up
This tests whether during pre-ventilation, the O actual value has complied
2
with the air value (no smaller than 18 vol.% O and smaller than 24 vol.% O ).
2
2
After ignition, the O actual value should have reached a value of no less than
2
14% within 45 seconds. Reaching the threshold value is monitored. If one of
the two values is not met, O regulation is deactivated. The regulator outputs
2
"Base value without regulation”.
O monitoring bands
The O actual value is constantly checked during burner operation for one
2
2
maximum and two minimum permitted values. These ranges are located
around the O target value as a function of the load.
2
If the actual values are outside these bands over a defined period of time,
regulation is deactivated and the warning "Fault” is output. Thereafter, the
regulator output (correction input) corresponds to "Base value without
regulation” or "Base value for air shortage” as relevant.
O boundary curves
2
49
Pre-ventilation
45 sec
Time
O
m
e
a
s
u
re
d
v
a
lu
e
2
Ignition
24 %
(Parameter 905)
18 %
(Parameter 906)
14 %
(Parameter 907)
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
4,00
8,00
5,00
9,00
3,00
7,00
O (Vol.%)
2
2,00
6,00
1,00
100
200
300
400
500
600
700
800
900
Burner output [load]
0,00
Upper monitoring band (parameters 923 to 926)
2nd lower monitoring band
(parameters 931 to 934)
O target value curve
2
1st lower monitoring band
(parameters 927 to 930)
Adjusting the integrated
This section explains only the operating steps needed to input the O curve.
2
O regulator (optional)
Further information on O regulation is contained in the publication
2
2
DLT 5002.99cD Commissioning Supplement for the
Optional "Integrated O Regulator”.
2
