FMS Commissioning
O regulation
2
Commissioning
Setting a base value for
Perturbation of O regulation causes it to deactivate, and the specified
2
"Deactivated regulator”
correction value for "Deactivated O regulator” or "Air shortage” is output,
2
and "Air shortage”
depending on the cause. The burner is not shut down.
Parameters 901/902
Parameter 897 can be used by the customer to specify a burner shut-down if
917/918
the perturbation is "Air shortage”.
Calling up the base value
The base values for deactivated O regulation and air shortage can be called
2
for O regulation
up via parameter 896.
2
deactivated / Air shortage
8
Z
Correction input _ base value for "Deactivated O regulation”
2
Parameter 901/902
9
Z
Correction input _ base value for air shortage
Parameter 917/918
Recommended settings:
for parameters 901/902 and 917/918
Base value for deactivated O regulation < neutral value
2
Base value for air shortage < base value for deactivated O regulation
2
Note: The neutral value is obtained from the chosen correction mode:
Correction mode +50% / -50%
Z
neutral value 500 ^ 50%
Correction mode +60% / -40%
Z
neutral value 600 ^ 60%
See also the explanations on page 66.
Factory settings
Parameters 901/902 - base value for "Deactivated O regulation” 300
2
Parameters 917/918 - base value for "Air shortage” 150
This results in the following approximate picture of burner output:
Automatic:
In preparation
i
O
2
[vol.%]
Regulated operation
Base value for air shortage
Base value for
"Deactivated O regulation”
2
4
3
2
1
0
Burner output
(load)
61
