Basic configuration of burner controller RWF 55
dreizler A 3001 E - 18.12.2015 | A 2076 - 1.13 | EN - 24.10.2013
155
48.1.4 Manual control
NOTICE:
Manual control can only be activated if the thermostat function
energized
relay K1. If the thermostat func-
tion
deenergized
relay K1 during manual control, manual control is ended.
Press
ESC
for 5 seconds.
HAnd appears on the lower display, alternating with the value for manual control (with continuous con-
toller).
3-position controller
Open and close fuel-air ration control by pressing
▲
and
▼
.
Relay K2 opens the controlling element as long as
▲
is kept depressed.
Relay K3 closes the controlling element as long as
▼
is kept depressed.
The 2 yellos arrows indicate, when relay K2 opens or relay K3 closes the controlling element.
Modulating controller
Change angular positioning by pressing
▲
and
▼
.
Adopt flashing new angular positioning by pressing
ENTER
.
Per default, the analog output delivers the current angular positioning.
Return to automatic operation by keeping
ESC
depressed for 5 seconds.
NOTICE:
When activating manual control, angular positioning is set to 0 until another entry is made.
Start of display
SCL 1
Scale low level
-1999...
0...
+9999
In the case of a measuring transducer with standard signal,
the physical signal is assigned a display value here.
Example: 0...20 mA = 0...1500°C
The range of the physical signal can be crossed by 20%,
either up or down, without getting a signal informing about
the crossing.
End of display
SCH 1
Scale high level
-1999...
0...
+9999
Filter time con-
stant
dF1
Digital filter
0,0...
0.6
...
100,0
It used to adapt the digital 2nd order input filter (time in s; 0 s
= filter off).
If the input signal changes abruptly, about 26% of the
change are captured after a time corresponding to the filter
time constant dF (2 x dF: approx.59%; 5 x dF: approx. 96%)
When the filter time constant is great:
- Great attenuation of interference signals
- Slow response of actual value display to changes of the
actual value
- Low limit frequency (low pass filter)
Temperature unit
Uni t
Temperature unit
1
2
Degrees Celsius
Degrees Fahrenheit
Unit for temperatures
Parameter
Value / selection Description