5.3.2
2-point controller (inverse)
ConF
/
Cntr
:
SP.Fn
=
0
set-point controller
C.Fnc
=
1
2-point controller (PID)
C.Act
=
0
inverse action
(e.g. heating applications)
ConF
/
Out.1
:
O.Act
=
0
action
Out.1
direct
Y.1
=
1
control output Y1 active
PArA
/
Cntr
:
Pb1
= 0,1...9999
proportional band 1 (heating)
in units of phys. quantity (e.g. °C)
ti1
= 1...9999
integral time 1 (heating) in sec.
td1
= 1...9999
derivative time 1 (heating) in sec.
t1
= 0,4...9999
min. cycle time 1 (heating)
PArA
/
SEtP
:
SP.LO
= -1999...9999 set-point limit low for Weff
SP.Hi
= -1999...9999 set-point limit high for Weff
g
For direct action, the controller action must be changed
(
ConF
/
Cntr
/
C.Act
=
1
).
Configuration level
Digital 280-1
Configuration examples
31
InH.1
InL.1
SP.LO
SP
SP.Hi
Out.1
Â
InP.1
Ê
100%
0%
PB1
Set-point
Output
Process-value
Summary of Contents for Digital 280-1
Page 48: ...12 Notes Notes Digital 280 1 48...
Page 49: ...Notes 49 Digital 280 1...
Page 50: ...Digital 280 1 50...
