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WATLOW Series 988 User’s Manual 4.37
Setup Menus, Chapter 4
Setup-Global
Cascade Action
Select the control action between the inner and outer loop of a cas-
cade system.
• Direct action [`dir] makes the percent output from the outer loop
directly proportional to the set point of the inner loop (input 2). A 100%
signal in the outer loop will set the inner loop to range high 2 [`rH2]
(Input Menu). A 0% signal in the outer loop will set the inner loop to
range low 2 [`rL2] (Input Menu).
• Reverse action [`rEU] makes the percent output from the outer loop
inversely proportional to the set point of the inner loop (input 2). A 100%
signal in the outer loop will set the inner loop to range low 2 [`rL2]
(Input Menu). A 0% signal in the outer loop will set the inner loop to
range high 2 [`rH2] (Input Menu).
[CSAC] This prompt appears only on controllers equipped with enhanced
software (98_B-_ _ _ _-_ _ _ _) and with [CntL] set to [CSCd].
Default
↓
[`dir] [`rEU]
[CASC] [CASC]
[CSAC]
C4.wc 5/14/1999 8:48 AM Page 4.37