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Chapter 3: Operating with AnaWin 3
PPC-2000 User’s Guide
94
Watlow Anafaze
Doc.# 30002-00 Rev 2.3
Tuning Method
The steps to autotune a channel are:
1.
In manual control set the set point to the value you will
use for the autotune.
2.
Note the value of the input filter.
3.
Set the input filter to 0 scans.
4.
Set the control mode to tune.
5.
Wait for the channel to autotune.
6.
Restore the input filter to its original value.
7.
Note the PID parameters for future reference.
NOTE!
A channel must be stable at a temperature well below
the set point in order to successfully autotune. The
controller will not complete tuning if the temperature
exceeds 75% of set point before the new parameters
are found.
Using
AnaWin3 to Tune
The following procedure explains how to autotune a channel
using
AnaWin3
.
1.
Choose
AnaWin3’s
Channels
spreadsheet screen and locate
the channel to be tuned.
2.
Ensure that the temperature is stable, and the channel is
in manual control mode (typically 0% heat output level).
3.
Note which input is used as the
PV Source
for the channel.
4.
On the
Inputs
spreadsheet, note the setting of the
Input Filter
for that input, and then set it to 0 scans.
5.
On the
Channels
spreadsheet, increase the
Set Point
to a
value such that the temperature will not rise from 60% to
80% of that value in less than 10 seconds when heated at
100% output.
6.
Select
Tune
as the
Control Mode
.
When tuning is completed, the control mode changes to
Auto
.
7.
Adjust the
Set Point
to the desired temperature.
8.
Restore the setting of the input filter to its original value.
ç
CAUTION!
Never set the set point above the safe operating limits
of your system.
Содержание Anafaze PPC-2000
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Страница 14: ...Table of Contents PPC 2000 User s Guide viii Watlow Anafaze Doc 30002 00 Rev 2 3...
Страница 24: ...List of Tables PPC User s Guide xviii Watlow Anafaze Doc 30002 00 Rev 2 3...
Страница 36: ...Chapter 1 Overview PPC 2000 User s Guide 12 Watlow Anafaze Doc 30002 00 Rev 2 3...
Страница 112: ...Chapter 2 Hardware Installation PPC 2000 User s Guide 88 Watlow Anafaze Doc 30002 00 Rev 2 3...
Страница 184: ...Chapter 4 Troubleshooting PPC 2000 User s Guide 158 Watlow Anafaze Doc 30002 00 Rev 2 3...
Страница 296: ...Chapter 7 Specifications PPC 2000 User s Guide 268 Watlow Anafaze Doc 30002 00 Rev 2 3...
Страница 310: ...Appendix A Modbus Protocol PPC 2000 User s Guide 282 Watlow Anafaze Doc 30002 00 Rev 2 3...
Страница 311: ...Doc 30002 00 Rev 2 3 Watlow Anafaze 283 B Appendix B Declaration of Conformity...
Страница 319: ...PPC 2000 User s Guide Glossary Doc 30002 00 Rev 2 3 Watlow Anafaze 291...
Страница 320: ...Glossary PPC 2000 User s Guide 292 Watlow Anafaze Doc 30002 00 Rev 2 3...