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Siemens Building Technologies
Electronic Air / Fuel Ratio Control System
CC1P7873.1en
HVAC Products
15 Programming the RVW26...
15.10.2002
Measuring the end switches / interval
2
S t
o p S w i
^
o p e n
9
A u x 1 P o s
=
9 .
7 5
1
A u x 2 P o s
=
9 .
3 0
Parameter
Meaning
StopSwi
Select end switch to be measured
The RVW26... automatically measures at what feedback potentiometer value the
end switches have reached their «Fully open» and «Fully closed» position.
This value is checked each time the burner is started up.
The measured value of the end switches is stored as soon as the feedback signal
does not change anymore.
If 2 fuel actuators are used, the measurement must be made with both types of
fuel.
The end switch values currently stored can be displayed by pressing «+» and «-».
If «
D
» or «
Ñ
» is pressed, the status character changes from «^» to «#».
The selected end switch positions «Open» or «Close» will be approached and
stored.
Once the values are stored, the status character changes to «>».
The other end switch position can now be measured by pressing «+» or «-».
Settings:
open / close
Aux1Pos
End switch of auxiliary actuator 1 (Aux1) in Volt
Factory setting close:
1 V
Factory setting open:
9 V
Aux2Pos
End switch of auxiliary actuator 2 (Aux2) in Volt
Factory setting close:
1 V
Factory setting open:
9 V
System configuration2
3
I
n t
e r
v a
:
5
9
L i
n e F r
e
:
5 0
1
Parameter
Meaning
Interva
Interval «t4»
Interval «INTERVA» corresponds to the time «t4» of burner controls.
Setting range:
5...15 s
Increment:
1 s
Factory setting:
5 s
LineFre
Mains frequency
Setting: 50 / 60 Hz
Factory setting:
60 Hz
Programming level 2
Display
Interpretation
Programming level 3
Display
Interpretation
