4.5.4
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
= 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)
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
Configuration examples
46
Operating manual MIR-491
InH.1
InL.1
SP.LO
SP
SP.Hi
Out.1
Â
InP.1
Ê
Out.2
Â
100%
0%
100%
0%
PB1
SH
setpoint
output 1
process value
output 2
