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94
Tuning Screens
Section 4-8
1,2,3...
1.
Click
Execute FT
at the upper left portion of the Tuning Screen, as shown
below.
The following FT Execution Dialog Box will be displayed.
2.
Set the degree of
Response
improvement,
Overshoot
ing control, and
Hunting
control to any of the five levels and then click the
OK
Button. Ei-
ther one or two of these can be set for one executed, but all three cannot
be set at the same time.
Fine tuning will be executed according to the settings, the resulting PID
constants will be stored automatically, and the new values will be displayed
at the top of the Tuning Screen.
3.
Repeat the above process as many times as required to achieve suitable
settings.
4.
Click the
Undo
Button to return to the previous PID constant settings. If the
Undo Button is pressed a second time, the FT settings will be returned to.
Execute fine tuning when the control performance produced by autotuning is
not acceptable, when autotuning produces inconsistency in the PV, or when
you cannot allow control to be interrupted.
Fine tuning uses three user settings for hunting control, overshooting, and
response improvement along with fuzzy inferences from previous control con-
ditions to improve control by automatically setting PID parameters.
Either one or two of the user settings for hunting control, overshooting, and
response improvement can be set to any of five levels. For example, to better
control hunting and overshooting, the
Overshoot
and
Hunting
parameters can
be set to the desired levels.
Summary of Contents for CX-Process Monitor Plus 2
Page 1: ...CX Process Monitor Plus Ver 2 Cat No W428 E1 02 SYSMAC WS02 LCMC1 EV2 OPERATION MANUAL...
Page 2: ...WS02 LCMC1 EV2 CX Process Monitor Plus Ver 2 Operation Manual Revised January 2007...
Page 3: ...iv...
Page 5: ...vi...
Page 9: ...x...
Page 15: ...xvi Application Precautions 4...
Page 41: ...26 Basic Operating Procedure Section 1 2...
Page 243: ...228 Checking Configurations Section 5 7...
Page 267: ...252 Reading Writing Function Block ITEMs Appendix A...
Page 269: ...254 Differences between Trend Screens and Batch Trend Screens Appendix B...