Siemens LMV5 Series Basic Documentation

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Siemens Building Technologies Basic Documentation LMV51... CC1P7550en
HVAC Products 7 Display and operating unit AZL5... 01.10.2003
The following section covers the parameter settings of the curves used by the basic unit
module «Fuel / air ratio control».
Selection menu «Ratio control»
The selection menu looks as follows:
Se t t ings Gas
1)
Se t t ings Oi l
2)
Au t om/Manua l /Of f
3)
Times
4)
NumFuelActuators
5)
Shut downBehav
6)
Program Stop
7)
Selection of 3) through 6) leads to standard parameter settings of the parameters
specified.
Selection of 1) leads to:
Selection menu «Settings gas»
Only the data associated with the currently active type of fuel can be parameterized.
Spec i a lPos i t i ons
1)
Cur ve Pa r am
2)
Load Limi ts
3)
AuxAc t ua t o r
4)
Calling up 1) (HomePositions, PrepurgePositions...), 3) and 4) leads to standard
parameter settings of the parameters specified.
Selection of 2) leads to:
Selection menu «Curve Param»(modulating)
Po i nt | Load : 23 . 2
:1|Fuel:23.2
Man | A i r : 41 . 6
|Aux :33.3
IHi lf2:29.2
only LMV52...
IHi lf3:13.8
only LMV52...
IFU :45.0
only LMV52...
In this example, the ignition positions are copied to the first point of the curve.
This is always made automatically when the ignition positions are defined but no point
on the curve has as yet been entered. The preliminary load value entered is the position
value of the fuel actuator.
This point is also automatically approached as the low-fire point.
If the installer attempts to reach submenu «Curve parameter settings» before the
ignition positions are defined, point number «1» appears. But the position fields display
«XXXX», indicating that the data are invalid.
When making the parameter settings, the installer is guided, starting with entry of the
ignition positions and coarse adjustment of the low- and high-fire positions to fine
adjustment of the curve settings with up to 15 curvepoints.
This setting of the curve can be made in 2 different ways:
1. Individual points are specifically entered.
2. Ratio control is operated manually until the value reached shall be stored as a new
point.
A more detailed description of both approaches is given below:
Special function
curve settings FARC

Siemens LMV5 Series Specifications

General

Brand	Siemens
Model	LMV5 Series
Category	Control Systems
Language	English