50
6 O
2
Trim
Nr. FMS ETA Short Text Description Min Max Default
897 1 1 O2Stoer Safety shut-down by O
2
/CO controller allowed? (0-
never, 1-when insufficient air)
010
In case of a fault of the O
2
trim, the O
2
trim will be deac-
tivated. Depending on the cause, the defined correction
value for "deactivated O
2
trim" or "air deficiency" will be
the output value. The burner does not shut down (con-
tent 0).
You can pre-select, if the fault "air deficiency"(content 1)
results in a burner shut-down.
898 0 0 O2-TotZ Dead time of O
2
controlled system 3 40 15
Dead time of the O
2
controlled system in seconds.
Target values for 2 / 3 -passboiler: 12 seconds
899 0 0 O2-P-Fak O
2
P-Term 1 50 5
Set the P-term in that way, that the setpoint value /
actual value deviation of 1...2 vol.% is regulated in 4...6
steps without overshoot.
Setting pulses too short - increase the P-term.
Overshoot - reduce P-term
900 0 0 O2 TZ - Dead time reduction for O
2
controlled system at full fir-
ing rate
053
Target values for 2, as well as 3 draught boiler: 3 sec.
With this parameter, you can adjust the dead time
depending on the firing rate. Because of the higher gas
speeds, the dead time is reduced at the high firing rate.
The factory setting is the reduction in the dead time of 3
seconds.
901 1 1 O2NeutrA Correction value output when O
2
trim is deactivated.
Fuel A
0 1000 400
Correction value output when O
2
trim is deactivated.
Fuel A
(since 5.0):
and one of the following values in P 847 is active.
0 = last received value would remain permanently valid
1...65535 = Timeout in seconds after 901/902 is acti-
vated*.
To Next Page
Loading...
