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Mitsubishi MELSEC-F FX3U-4AD-PT-ADP User Manual

Mitsubishi MELSEC-F FX3U-4AD-PT-ADP
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G-18
4 Auto Tuning
FX
3U
/FX
3UC
Series PLC User's Manual - Analog Control Edition
PID Instruction (FNC 88)
4.1 Limit Cycle Method
4. Auto Tuning
This chapter describes the auto-tuning function of PID instruction.
The auto-tuning function will automatically set the important constants, such as the proportional gain and the
integral time, to ensure optimum PID control.
There are two auto-tuning methods: limit cycle method and step response method.
4.1 Limit Cycle Method
4.1.1 Parameters set in auto tuning (of limit cycle method)
Parameter Setting position
Proportional gain (K
P)
+3
Integral time (TI)
+4
Differential time (T
D)
+6
S
3
S
3
S
3
S
3
S
3

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Mitsubishi MELSEC-F FX3U-4AD-PT-ADP Specifications

General IconGeneral
BrandMitsubishi
ModelMELSEC-F FX3U-4AD-PT-ADP
CategoryController
LanguageEnglish

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