3 3-point and continuous controller 43 – West Control Solutions Pro-8 User Manual

Page 43

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4.5.3

3-point and continuous controller

ConF / Cntr: SP.Fn = 0

set-point / cascade controller

C.Fnc = 3

3-point controller (2xPID)

C.Act = 0

action inverse
(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

Conf / Out.3:

O.typ

=1 / 2

0 ... 20 mA continuous. / 4 ... 20 mA

Out.0 = 0

scaling 0 %

Out.1 = 100

scaling 100 %

O.Src = 1

controller output y1 (continuous)

PArA / Cntr: Pb1

= 0,1...9999

proportional band 1 (heating)
in units of phys. quantity (e.g. °C)

Pb2

= 0,1...9999

proportional band 2 (cooling)
in units of phys. quantity (e.g. °C)

ti1

= 1...9999

integral time 1 (heating) in sec.

ti2

= 1...9999

derivative time 2 (cooling) in sec.

td1

= 1...9999

integral time 1 (heating) in sec.

td2

= 1...9999

derivative time 2 (cooling) in sec.

t1

= 0,4...9999

min. cycle time 1 (heating)

t2

= 0,4...9999

min. cycle time 2 (cooling)

SH

= 0...9999

neutr. zone in units of phys.quantity

PArA / SEtP: SP.LO = -1999...9999 set-point limit low for Weff

SP.Hi = -1999...9999 set-point limit high for Weff

Configuration level

Pro-8

43

Configuration examples

InH.1

InL.1

SP.LO

SP

SP.Hi

Out.1Â

InP.1Ê

100%

0%

100%

0%

PB1

PB2

Out.2Â
Out.3Â

20 mA

0/4 mA

PB1

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