PPC-2000 User’s Guide
Chapter 6: Tuning and Control
Doc.# 30002-00 Rev 2.3
Watlow Anafaze
227
Table 6.2
Integral Term and Reset Settings
As a general rule, use 60, 120, 180, or 240 as a starting value
for the Integral.
Derivative Settings
The controller’s Derivative parameter is programmed in
seconds. Some other products use a derivative term called Rate
programmed in minutes. Use the table or the formula to
convert parameters from one form to the other.
Derivative versus Rate; Rate = Derivative/60.
Table 6.3
Derivative Term vs. Rate
As a general rule, set the Derivative to 15% of Integral as a
starting value.
NOTE!
While the basic PID algorithm is well defined and
widely recognized, various controllers implement it
such that parameters may not be taken from one
controller and applied to another with optimum
results even if the above unit conversions are
performed.
Integral
(sec/repeat)
Reset
(repeat/min)
Integral
(sec/repeat)
Reset
(repeat/min)
30
2.0
210
0.28
45
1.3
240
0.25
60
1.0
270
0.22
90
0.66
300
0.20
120
0.50
400
0.15
150
0.40
500
0.12
180
0.33
600
0.10
Derivative
(seconds)
Rate
(minutes)
Derivative
(seconds)
Rate
(minutes)
5
0.08
35
0.58
10
0.16
40
0.66
15
0.25
45
0.75
20
0.33
50
0.83
25
0.41
55
0.91
30
0.50
60
1.0
Summary of Contents for Anafaze PPC-2000
Page 2: ......
Page 14: ...Table of Contents PPC 2000 User s Guide viii Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 24: ...List of Tables PPC User s Guide xviii Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 36: ...Chapter 1 Overview PPC 2000 User s Guide 12 Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 112: ...Chapter 2 Hardware Installation PPC 2000 User s Guide 88 Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 184: ...Chapter 4 Troubleshooting PPC 2000 User s Guide 158 Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 296: ...Chapter 7 Specifications PPC 2000 User s Guide 268 Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 310: ...Appendix A Modbus Protocol PPC 2000 User s Guide 282 Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 311: ...Doc 30002 00 Rev 2 3 Watlow Anafaze 283 B Appendix B Declaration of Conformity...
Page 319: ...PPC 2000 User s Guide Glossary Doc 30002 00 Rev 2 3 Watlow Anafaze 291...
Page 320: ...Glossary PPC 2000 User s Guide 292 Watlow Anafaze Doc 30002 00 Rev 2 3...
