33
To interrupt, press the Level and Display Keys again to display
at
. When
at
appears, press the Up Key. On interrupt, the
at
display disappears and the pro-
cess value is displayed.
Auto-tuning operates only when SW203-1 on the rear panel is set to OFF to en-
able PID control with feed-forward circuitry. When auto-tuning is completed, the
AT indicator stops blinking and the P, I, and D data is written to EEPROM. If nec-
essary, the P, I, and D data can be changed as described in the following.
Proportional Band (Display Level 0)
PV
SV
Proportional Band parameter symbol
Currently set Proportional Band. Units:
°
C or
°
F. The
setting can be changed from this display.
Integral (Reset) Time (Display Level 0)
PV
SV
Integral time parameter symbol
Currently set integral time. Units: second. The
setting can be changed from this display.
Derivative (Rate) Time (Display Level 0)
PV
SV
Derivative time parameter symbol
Currently set derivative time. Units: second. The
setting can be changed from this display.
Parameter Displays and Settings
Section 3-4
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