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Adaptive Addendum
PPC-2000 User's Guide
0600-0049-0001 rev C
Watlow Anafaze
2
Adaptive Mode
When
Control Type
is set to
Adaptive
, this parameter can be used to
pause tuning or to reset the adaptive algorithm and have it relearn the
system. This parameter has no effect on control if the
Control Type
for
the loop is set to an option other than
Adaptive
.
Values:
Adapt (0), Reset (1) and Hold (2)
Default:
Reset (1)
Modbus Address (Channels 1 to 32):
49001 to 49032
Parameter Number:
21
LogicPro Driver:
Database
LogicPro Address (Channels 1 to 32):
21.1 to 21.32
Table 1. Adaptive Mode Settings
Setting Description
Adapt
The normal setting for a loop with
Control Type
set to
Adaptive
. The loop is adapting and tuning while controlling.
Reset
Select this option to have the control loop start from scratch
and relearn the load characteristics. The
Control Mode
must
be set to
Off
or
Manual
to select this option for an adaptive
loop. This is the normal setting for a loop with
Control Type
set to a value other than
Adaptive
.
Hold
Select this option to have the control loop stop learning
temporarily but retain the learned load characteristics. For
example in the event that maintenance will be performed, it
may be advantageous to pause adapting to avoid false data
being introduced. Select this option anytime you want the
controller to stop adapting and continue to control with the
parameters learned up to that point.
Plant Delay
This parameter indicates the amount of delay in seconds in the load. This
characteristic of the load or plant has a significant impact on adaptive
control. A larger number indicates a longer delay between, for example
an increase in heater power and an increase in the temperature.
Choose
Automatic
and then set the
Control Mode
to
Auto
to have the
adaptive algorithm determine the plant delay for the loop. The loop must
be at least 40 degrees below set point and the controller must observe a
temperature change of at least 20 degrees to determine the
Plant Delay
.
If you have determined the
Plant Delay
with the PPC-2000's adaptive
control previously and found the performance acceptable, you may
choose the delay directly and the loop will use the value you choose
rather than measure it.
This setting is not reset by the
Adaptive Mode
parameter's
Reset
option.
To have the controller relearn the
Plant Delay
, set the loop's
Control
Mode
to
Manual
or
Off
, set the
Plant Delay
to
Automatic
, and then set
the
Control Mode
to
Auto
again.
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...