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4 3-point stepping controller (relay & relay) 44, Point stepping controller 44, Pb1 sh – West Control Solutions KS 50-1 User Manual

Page 44

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4.5.4

3-point stepping controller (relay & relay)

ConF / Cntr: SP.Fn = 0

set-point / cascade 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

44

KS50/52-1

InH.1

InL.1

SP.LO

SP

SP.Hi

Out.1Â

InP.1Ê

Out.2Â

100%

0%

100%

0%

PB1

SH