4 3-point stepping controller (relay & relay) 47, Point stepping controller 47 – West Control Solutions KS 92-1 Programmer manual User Manual
Page 47
4.4.4 3-point stepping controller (relay & relay)
ConF / Cntr: SP.Fn = 0
set-point controller
C.Fnc = 4
3-point stepping controller
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
Y.2
=
0
control output Y2 not active
ConF / Out.2: O.Act = 0
action
Out.2 direct
Y.1
=
0
control output Y1 not active
Y.2
=
1
control output Y2 active
PArA / Cntr: Pb1
= 1...9999
proportional band 1 (heating)
in units of phys. quantity (e.g. °C)
ti1
= 0,1...9999
integral time 1 (heating) in sec.
td1
= 0,1...9999
derivative time 1 (heating) in sec.
t1
= 0,4...9999
min. cycle time 1 (heating)
SH
= 0...9999
neutral zone in units of phy. quantity
tP
= 0,1...9999
min. pulse length in sec.
tt
= 3...9999
actuator travel time in sec.
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 of the 3-point stepping controller, the controller output action
must be changed (
ConF / Cntr / C.Act = 1 ).
Configuration level
KS 90-1
p / KS 92-1
p
47
Configuration examples
InH.1
InL.1
SP.LO
SP
SP.Hi
Out.1Â
InP.1Ê
Out.2Â
100%
0%
100%
0%
PB1
SH
setpoint
output 1
process value
output 2