Custom-Tuning (Heating)
Overview
This procedure describes how to set the PID parameter manually.
|
Step |
Action |
|---|---|
|
1 |
Set iq_etSelectParameterSetPID to ET_ParameterSetPID.Custom. |
|
2 |
Set rTn, rTv, and rTd to 0. Also refer to ST_PID. |
|
3 |
Increase rKp until the system begins to oscillate. |
|
4 |
Decrease rKp until the system does not oscillate. |
|
5 |
Decrease rKp by another few points. |
|
6 |
Set rTn, beginning with a large value for time, for example 300 s (system dependent) and verify that the system does not oscillate. |
|
7 |
Decrease rTn until the system is stable and without oscillation. Result: In the figure below a typically correct regulation is shown. 
|
Also refer to chapter FB_HeatingControl.