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
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