42
Bentone
Display of controller parameters
The parameters are shown on the lower setpoint display (green) and
their values on the upper/actual value display (red).
Parameter
Display
Value range
Factory
setting
Remarks
Proportional band ¹
Pb1
1...9999 digit
10
Influences the controller’s P-action
Derivative time
dt
0...9999 s
80
Influences the controller’s D-action
With dt = 0, the controller has no
D-action
Integral action time
rt
0...9999 s
350
Influences the controller’s I-action
With rt = 0, the controller has no
I-action
Dead band (neutral zone) ¹
db
0.0...999.9 digit
1
For 3-position output
Controlling element running time
tt
10...3000 s
15
Running time of the servo motor for
use with modulating controllers
Switch-on threshold
Heating controller ¹
HYS1
-1999...0.0 digit
-5
See chapter 5.2 High-fire operation in
the enclosed manual.
Switch-off threshold stage II
Heating controller ¹
HYS2
0.0...HYS3 digit
3
See chapter 5.2 High-fire operation in
the enclosed manual.
Switch-off threshold
Heating controller ¹
HYS3
0.0...9999 digit
5
See chapter 5.2 High-fire operation in
the enclosed manual.
Switch-on threshold
Cooling controller ¹
HYS4
0.0...9999 digit
5
See chapter 5.2 High-fire operation in
the enclosed manual.
Switch-off threshold stage II
Cooling controller ¹
HYS5
HYS6...0.0 digit
-3
See chapter 5.2 High-fire operation in
the enclosed manual.
Switch-off threshold
Cooling controller ¹
HYS6
-1999...0.0 digit
-5
See chapter 5.2 High-fire operation in
the enclosed manual.
Response threshold
q
0.0...999.9
0
See chapter 5.5 Response threshold
(q) in the enclosed manual.
!
When using the RWF50… as a modulating controller only, or as a modulating
controller without the burner release function (1P, 1N), parameter HYS1 must be set to 0
and parameters HYS2 and HYS3 must be set to their maximum values.
Otherwise, for example, when using default parameter HYS1 (factory setting -5), the
3-position controller is only released when the control deviation reaches -5 K.
160303-503
1
Setting of decimal place has an impact on this parameter.
Summary of Contents for STG 146i/2
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Page 123: ......
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