189
Initial Setting Level Section 5-7
• The ST (self-tuning) function executes tuning from the start of program
execution to calculate PID constants matched to the control target. When
the ST function is in operation, be sure to turn ON the power supply of the
load connected to the control output simultaneously with or before starting
Controller operation.
• Auto-tuning can be started during self-tuning.
■ Related Parameters
Input type: Page 184, PID ON/OFF: Page 188 (initial setting level), ST stable
range (advanced function setting level): Page 205
This parameter sets the type of control when using the simple program func-
tion.
• If the program pattern is set to OFF, the simple program will not operate.
• If the program pattern is set to STOP, the RUN/STOP status will change to
STOP after the soak time has expired. If the program pattern is set to
CONT, control will continue in RUN status after the soak time has expired.
■ Related Parameters
Program start, Soak time remain: Page 155, RUN/STOP: Page 156 (operation
level)
Soak time, Wait band (adjustment level): Page 175
Soak time unit (advanced function setting level): Page 224
st ST (self-tuning)
The control must be set to a temper-
ature input, standard control, and 2-
PID control.
Parameter name Setting range Unit Default
ST off: ST function OFF, on: ST
function ON
None on
Function
Setting
See
See
ptrn Program Pattern
Setting range Default
off Simple program function turned OFF off
stop Go to STOP mode at end of program.
cont Continue in RUN mode at end of program.
Function
Setting
See
See
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