Pid Auto-Tuning - Hanyoung TH500 Manual

Once the program operation starts,
screen 1 for program control [Fig.21]. These buttons has function which is related to progress of
segment.
Button
3.6 PID Auto Tuning
Auto Tuning (hereinafter referred to as A/T) is the
automatic setting function in which the controller
measures the characteristics of the control system
automatically and calculates the optimal PID values
accordingly. The A/T method measures and calculates
a cycle by producing the ON/OFF control output for the
two cycles and generating the limit cycle of controlled
targets.
You can execute A/T all the time by entering a target
setting value (SV) in the fixed control mode, pressing
the button, and pressing the subsequent either
or button. After A/T is finished normally, if
the unit is set to automatic PID ZONE reference mode,
the resulted PID value will be saved into the
appropriate PID ZONE. If this unit is set to manual PID
ZONE reference mode, the results PID value will be
saved into your designated PID ZONE.
and
It stops the currently processing operation of segment and runs the
next segment operation. Pressing the STOP button on the wait status
or hold status will cancel the hold function and runs the next segment
of current segment immediately.
Pressing the button while it is operating will keep the set value
(set value which had been set right before performing HOLD function)
disregarding the set time. Pressing the
status will cancel the hold function and runs the program. While it is
in hold status, pressing the STEP button will cancel the hold status,
skip current segment and run next segment immediately.
buttons will appear newly like as running
Function
button on the hold
PID auto-tuning interval
AT start
ON/OFF operation
[Fig 22] PID Auto Tuning
34
AT end
PID Control interval