CHAPTER 3 BASIC OPERATION
3-12
3.8 Determining PID Constants (AT, ST, manual setup)
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# -$) ,)( )($0()## ( $%(")" $#'(#(' $& ( '(
%$#( )&# %&$&" ,)($# & )($"(!!- '( - $&!- #0
# ( "#%)!( *&! ($ !)!( ( &(&'(' !! (
.!"( -! "($ $ ( $#(&$! (&(
•
$ ,)( )($0()## '%- .
,)( # ($ #!
)($0()## '%- . #!
•
)($0()## ##$( ,)( )&# $#(&$!
•
&')!( $ )($0()## ' "&&$& # ( .%&$%$&($#! #
.#(&! (" # .&*(* (" %&"(&' # (
.)'("#( !*!
Adjustmentlevel
Proportionalband
Integratedtime
Derivativetime
)($0()## ' '(&( +# ( . ,)(#! %&"(& ' '(
($ . )&# ,)($# $ ( $ '%!- $& (. ,)(#0
! %&"(& !# ' # #' ( . ,)(#! %&"(&
()&#' # ( $ '%!- '($%' !# #
,)(#! $ '%!-
During AT execution
-$) "$* ($ ( .$%&($# !*! )&# ,)($# ( $ '%!-
!# ' ($ #( (( ' # ,)(
$ '%!-
During AT execution
#!- ( .$"")#($#' +&(# .&)#'($% # . ,)($##0
! %&"(&' # # )&# ,)($# (& %&"(&'
##$( #
J
AT.
(autoĆtuning)
F
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