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Idiomas disponibles
Idiomas disponibles
RWF 50/55
- Microprocessor regulator - Setpoint
When the burner is ignited all displays of the regulator light up. The set point display will blink for about 10 seconds. The value in the
upper field of the display (red) indicates the actual value. The value in the lower field of the display (green) indicates the set point cur-
rently programmed.
CHANGING THE SET POINT
To change the set point, proceed as follows :
- Press the
Enter button to access the user level
Enter
button, in display flashes SP1. - Change the value of set point SP1 using the keys tand s ,press
WEATHER-COMPENSATED SETPOINT SHIFTING (RWF55)
The RWF55 can be configured so that weather-compensated setpoint shifting is activated when an LG-Ni1000 outside sensor or a
Pt1000 is connected. To take into account the time response of a building, weather-compensated setpoint shifting uses the attenuated
outside temperature rather than the current outside temperature. This attenuated outside temperature is determined on the basis of the
current outside temperature and a filter constant. With the RWF55, this filter value (parameter dF3) can be adjusted. In the event of a
power failure, this filter is reset. The minimum and maximum setpoints can be set using the lower setpoint limit SPL and the upper set-
point limit SPH. The system also prevents the lower working range limit oLLo and upper working range limit oLHi from exceeding/drop-
ping below the system temperature limits.
Heating curve
The heating curve describes the relationship between the boiler temperature setpoint and the outside temperature. It is defined by 2
curve points. For 2 outside temperatures, the user defines the boiler temperature setpoint that is required in each case. The heating
curve for the weather-compensated setpoint is calculated on this basis. The effective boiler temperature setpoint is limited by the upper
setpoint limit SPH and the lower setpoint limit SPL.
Apart from the standard value range limits, there are no other dependencies between the individual curve points.
Setpoint (°C)
H t 1
+60
H t 2
+50
+20
10
A t 2
SETTING PARAMETERS
PA
PA
PID parameters are factory set to standard mean values. The operation of the regulator can be self-adapted to suit the system by acti-
vating the
tUnE function. The regulator will set the
tUnE
To activate the
tUnE function proceed as follows:
tUnE
- With the burner in operation, press t+s buttons for 5 seconds.
- The caption
tUnE will blink in the display.
tUnE
- When
tUnE stops blinking, the self-adaptation routine has been completed.
tUnE
- The parameters calculated by the controller are automatically adopted!
Note!: It is not possible to start
Self-setting function in high-fire operation
Self-setting function
tUnE is a proper software function unit integrated in the controller. In modulating mode,
tUnE
operation the response of the controlled system to angular positioning steps according to a special procedure. A complex control algo-
rithm uses the response of the controlled system (actual value) to calculate and automatically store the control parameters for a PID or
PI controller (set dt = 0!). The
Note!:
tUnE is only possible in high-fire operation, in modulating burner mode.
tUnE
2 procedures
The
tUnE function uses 2 different methods that are automatically selected depending on the dynamic state of the actual value and
tUnE
the deviation from the setpoint at startup.
If there is a great difference between actual value and setpoint when
controlled variable performs forced oscillations during the self-setting process. The switching line is set to such a
level that the actual value should not exceed the setpoint.
420010571400
OPr, press the
OPr
Temperatura esterna (°C)
-10
0
A t 1
r
A
r
A
PArA parameters automatically.
PArA
tUnE in manual control or low-fire operation.
tUnE
tUnE
tUnE procedure can be repeated any number of times.
tUnE can be started from within any dynamic actual value sequence.
tUnE
Enter button, SP1 will appear in the lower display. - Press the
Enter
tUnE is activated, a switching line is established about which the
tUnE
Enter to confirm.
Enter
tUnE tests in high-fire
tUnE
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EN
Enter
Enter
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