54
7 O
2
Trim
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*.
902 1 1 O2NeutrB Correction value output when O
2
trim is deactivated. 0 1000 400
Correction value is displayed at deactivated O
2
trim.
Fuel 1
(from 5.0 on):
at P 7 = dec 32 and P 847 = 2, 3 or 4:
CO/O
2
controller slave / correction 1 via LSB
0 = the last received value is permanent valid
1..65535 = Time-out in seconds after P 901 / P 902 is
active.
917 1 1 LftmKorA Air deficiency correction value fuel A 0 999 300
Air deficiency correction value for fuel 1
918 1 1 LftmKorB Air deficiency correction for fuel B
see P 917
0 999 300
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