West Control Solutions N8840 - Manual (Page 56)

4.6.8 Continuous controller with integrated positioner ( Cntr/ C.Fnc = 6 )
This is basically a cascade. A tracking controller with three-point stepping
behaviour which operates with Yp as process value (INP.2 / INP.3) is used with
the continuous controller.
ConF / Cntr SP.Fn = 0 Setpoint controller
C.Fnc = 6 Continuous controller with
integrated positioner
C.Act = 0 Direction of operation invers
(e.g. heating)
ConF / InP.2: I.Fnc = 3 Position featback Yp
S.typ = 50 Sensor e.g. potentiometer 0..160 Ω
ConF / Out.1: O.Act = 0 Direction of operation Out.1 direct
Y.1 = 1 Controller output Y1 activ
Y.2 = 0 Controller output Y2 not activ
ConF / Out.2: O.Act = 0 Direction of operation Out.2 direct
Y.1 = 0 Controller output Y1 not activ
Y.2 = 1 Controller output Y2 activ
PArA / Cntr: Pb1 = 0,1...9999 Proportional band 1 (heating)
in phys. units (e.g. °C)
ti1 = 1...9999 Integral action time 1 (heating)
in sec.
td1 = 1...9999 Derivative action time t 1 (heating)
in sec.
t1 = 0,4...9999 Minimal cycle time 1 (heating)
SH = 0...9999 Neutral zone in phys. units (e.g.°C)
Configuration level
Configuration examples 56 8840 profiler
W
X M
OUT.4
OUT.1
OUT.2
INP.2
Ypid
Position controller
INP.1
Y.1
Y.2
Master controller
Ycontinuous X
W
SP