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1500°C Tube Furnace
Auto Tune
Auto Tune is used to set the control terms (PID values) as close as possible to match the
characteristics of the process.
It uses the auto tuner which works by switching the output on and off to induce an
oscillation in the process value. For this reason, the auto tune process should be done off
line but using load conditions as close as possible to those to be found in practice. From
the amplitude and period of the oscillation, it calculates the control parameter values.
Steps to Auto Tune:
1. Press PAGE button until Control Page is displayed on the controller screen.(access in
Level 2)
2. Press SCROLL button to select SP1.
3. Change the SP1 value to desired value for tuning with up/down buttons. (In following
example SP1 is selected as 600°C). The controller will accept the new value and is
indicated by a brief flash of the display.
4. Press SCROLL button until TUNE is selected.
Main Controller: 25x500 Segment Programmable |
Chapter 7
305435H03 | 7-61
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