FMS Commissioning
Tips & Tricks
Entering the compound curves
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with the burner stationary
In order to be able to program the FMS without a flame, the fan must be in
operation (at least where a speed-controlled fan is actuated by the FMS)
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Apply 230-V signal to fan
- e.g. Bridge terminal 81 and terminal 89 on relay R 18
(caution: as a result, terminal 92 also receives a voltage)
Disconnect "Burner On” signal (terminal 2)
so that burner does not start
Enter curve
Connect fan actuation again (e.g. remove bridge)
Keeping the re-circulation
The pre-ventilation behaviour of the re-circulation duct according to the
damper closed in pre-ventilation
technical regulations on steal boilers [TRD] is incorporated into the software of
the FMS. That is, the re-circulation dampers always open with a delay.
If the system subsequently requires the re-circulation to remain closed during
pre-ventilation, this can be achieved by means of the pre-ventilation limit
parameters (parameter 346-350).
Clear range limits
Selector switch (2) to "Clear memory”
Press Acceptance
- Selector switch to Automatic
Select pre-ventilation limit parameter for the re-circulation duct
Enter CLOSE position of the re-circulation damper
Have range limits re-entered through pre-ventilation
Now the re-circulation damper does not open during pre-ventilation
Setting the pilot burner
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(servicing mode)
A special function is incorporated into the FMS in order to facilitate setting of
the pilot burner. (The control unit runs only until the stabilisation time
(main valves do not open).
By doing this, up to 5 ignition attempts can be performed without prior flushing
or leakage test. Only after 5 starts does automatic flushing of the boiler occur
according to the times set on the FMS.
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Selector switch (2) to parameterisation
Select parameter 787
Set content to "1”
- Servicing modus is active
Selector switch (2) back to Automatic
Set pilot burner
(to do this allow the burner to start quite normally)
when setting is completed
Reset parameter 787 to "0”
Switching the burner on
again via the target value
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If possible, only reset faults via short reset, otherwise the maintenance
mode counter restarts, i.e. another pre-ventilation occurs.
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If the integral output regulator is used and a negative value is entered in
parameter 802, it is possible to achieve a situation where the burner is switched
on accordingly via the target value.
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