P 88
Control value for the thermostat function:
Parameter 802
If the boiler temperature or the steam pressure is below the necessary target
value less the bottom control region, the burner is switched on. If a negative
value is entered here, the burner starts via the target value.
P 89
If the boiler temperature or the steam pressure is above the necessary target
Parameter 803
value plus the top control region, burner load is set to base load.
Values between parameters 802 and 803 are the control region.
P 90
If the boiler temperature or the steam pressure is above the necessary target
Parameter 804
value plus the value for Burner Off, the burner is switched off.
Values between parameters 803 and 804 are the shutdown region, i.e. base
load is output as the demanded load.
If the load regulator is deactivated (e.g. via remote control software,
manual operation or for adjustment), the "Burner Off limit” is not
operational.
P 91
Example values:
The control parameters are adjusted here.
Parameter 805
Hot water facility
Steam facility
Parameter 806
4
10
Parameter 807
3
5
250
100
P 92
The time that elapses until a new calculation of load-value displacement is
Parameter 808
performed (should correspond to the control-path's dead time).
An extension of the readjustment time increases the regulator's D-component
indirectly, and vice versa.
P 93
Burner output for the relevant curve-set in % in base load.
Parameter 814
Serves only for conversion if a display in percent was selected.
Parameter 815
Parameter 816
Parameter 817
Parameter 818
Parameter 819
Parameter 820
Parameter 821
Note:
All load-regulator parameters (except for fuel output and load-regulator
type) can be altered during current operation.
FMS Fault Correction
Parameters (P)
Aids
116
