Auto-Tuning Pca Series Chillers - AEC PCA SERIES Operation And Installation Manual

Do not change any of the control settings without consulting
The AEC, Inc. warranty does not cover chiller failures
Down Key
Up Key
5-5

Auto-Tuning PCA Series Chillers

Factory default settings are: P = .3, I = 7, and D = 1
PCA Series Chillers
Important!
the AEC Service Department.
from tampering with controller settings!
Each press of the
the values or settings on the
Each press of the
the values or settings on the
The Auto-Tune function lets you fine-tune the control PID to
process requirements. Activate the Auto-Tune function whenever
the process under control changes. Don't be alarmed by control
response. It may take the process temperature above and below the
set points as many as three (3) times. It will then level off and
control to the process set point. Auto tuning can take up to 45
minutes, and is best done before any product is being run.
Important!
To auto-tune the controller:
Press and hold down the
the indicator flashes.
AT
The AT LED flashes to indicate that the control is tuning
itself.When the
tuned and ready for operation.
Down Arrow key decrements or reduces
display.
SV
key increments or advances
Up Arrow
SV display.
AT
key for several seconds until
AT
AT LED light stops flashing, the controller is
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