Watlow CLS200 - Manual (Page 141)

CLS200 Series User’s Guide Chapter 6: Enhanced Features
Doc.# 0600-3050-2000 Watlow Anafaze 125
NOTE! Ratio control cannot be used on the same
control loop as cascade control. However,
both features may be used in the same multi-
loop controller.
Setup Loop Ratio Control Menu
The ratio control parameters appear in the SETUP LOOP
RATIO CONTROL menu.
Press YES to set up the ratio control parameters with loop
number 2 as the ratio loop.
Master Loop
Enter the master loop which will provide the output to the
internal controller setpoint calculation for the ratio loop
setpoint.
Selectable values: Any loop except the loop currently se-
lected (in this case, loop 02). Choose NONE for no ratio con-
trol.
Minimum Setpoint
Enter the lowest allowable setpoint for the ratio loop. This
minimum setpoint overrides any ratio calculation calling
for a lower setpoint. This value is expressed in the same en-
gineering units as the ratio loop’s process variable.
Selectable values: Any value from the minimum value of
the ratio loop’s process variable to its maximum value.
Maximum Setpoint
Enter the highest allowable setpoint for the ratio loop. This
maximum setpoint overrides any ratio calculation calling
ALARM
SETUP LOOP 02
RATIO CONTROL?
ALARM
02 RATIO CONTROL
MSTR LOOP? NONE
ALARM
02 RATIO CONTROL
MIN SP? 25