Eaton TC 24, User Manual

Page: 42 / 54

The auto-tuning can be applied either as the process is warming
up ( Cold Start ) or as the process has been in steady state (
Warm Start ).
After the auto-tuning procedures are completed, the display
will stop flashing and the unit will revert to PID control, using
he new PID values. The PID values obtained are stored in the
nonvolatile memory.
In certain applications ( very few ) using auto-tuning to tune a
process may be inadequate for the control requirements, this is
when manual tuning should be used.
If the control performance by using auto-tuning is still
unsatisfactory, the following rules can be applied for further
adjustment of PID values :
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