69
FMS Commissioning
Run to shut-off limits
The correction value can now be changed at will with Channel key 1 (6), with
burner on. The manually selected correction value is maintained until the
selector switch (2) is turned to some other position, or normal correction is
activated by pressing Channel key 2 (4) downward.
Adjustment of the correction range is possible via parameter 517 (with the burner
operational). In the event of several fuels (curve-sets), the range can also be
adjusted individually for each curve-set and channel via parameters 517 to 596
(expert level).
To ensure that with deactivated O2-control the tolerance to the air deficiency
side is not growing, the Parameters 917, 918 and 901, 902 have to be set to
the corresponding value. This value depends on the selected correctional mode.
Empirical formular (+correctional mode x 10.)-100
Example 1:
correctional mode +60/-40
Z
the parameters have to be smaller than 500, i. e. every value
between 0 and 500 creates an exceed air
( 600 would correspond to the setpoint curve)
Example 2:
correctional mode +70/-30
Z
the parameters have to be smaller than 600.
Tolerance limits direction
The parameter values direction air deficiency have to be known to run the test.
air
deficiency
The factory settings of the relevant parameters are noticed on the
configuration button.
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If during the commissioning the factory settings of the dead band and the
monitoring bands were changed, this has to be documented externally.
The entries on the configuration button have to be set to status quo in non-
blurable permanet manner. ( par example with water proofed permanent marker)
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Tolerances in direction air deficiency do not exist if the following parameter
settings are kept :
Z
For fuel channels and recirculation channels dead band in positive direction
parameters 42 - 46 = 0 digit
Z
For air channels dead band in negative direction
parameters 32 - 36 = 0digits
Furthermore the "Band shift in the event of a change in power"
(par. 709 - 712) must have the same value as the monitoring band of the
respective channel in direction air deficiency (pa,r. 62 - 76) for there will be no
tolerances in direction air deficiency in the case of changing power.
From delivery date 01.02.04
We recommend the documentation in the form of a protocol. This protocoll may
be included in the setting protocols of the burner.
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Indication for an example
With help of the protocol it can be proven, that an inspection of the shut-off
protocol (next page)
limits is not necessary due to the parameter settings. The values of the
settings are entered to the table. The gray highlighted numbers identify the
parameter numbers or numbers where the respective settings normally are
stored. The statements 1-6 have to be confirmed by signature. Delete as
applicable. A statemen has to be enlisted, why excess air doesn't have to
be considered. Otherwise the inspection for excess air has to be
confirmed.
it corresponds to the factory settings.
Changing this settings requires the documented inspection of the combustion
limits like described before.
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As the case may be the correctness of these parameter settings must be
proven outwards. This can be done with reading the parameters directly on
the device or with the remote software and another adequat tool for analysis
respectively.
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