Mitsubishi Electronics Mitsubishi Digital Electronics Home Theater Server MELSEC-F Manual de usuario Pagina 488
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M-18
4 Auto-Tuning
FX
3G
/FX
3U
/FX
3UC
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 (T
I)
+4
Differential time (T
D)
+6
S
3
S
3
S
3
S
3
S
3
- Voltage / Current Input 1
- Temperature Sensor Input 1
- Voltage / Current Output 1
- Voltage / Current 1
- Input / Output Mixture 1
- Safety Precautions 3
- 5. Version Number A-47 8
- 1. Outline B-3 9
- 2. Specifications B-6 9
- 3. Wiring B-10 9
- 4. Analog Input B-18 9
- 5. Buffer Memory (BFM) B-20 9
- 8. Troubleshooting B-62 10
- Table of Contents 11
- 1. Outline E-3 13
- 2. Specifications E-6 13
- 3. Wiring E-9 13
- 4. Analog Output E-13 13
- 5. Buffer Memory (BFM) E-15 13
- 9. Troubleshooting E-64 14
- FX3U-3A-ADP 17
- 6. Troubleshooting H-34 18
- FX3U-4AD-PT-ADP 19
- FX3U-4AD-PTW-ADP 20
- 1. Outline K-3 21
- 2. Specifications K-6 21
- 3. Wiring K-10 21
- 4. Programming K-16 21
- 5. Troubleshooting K-29 21
- 1. Outline L-3 22
- 2. Specifications L-6 22
- 3. Wiring L-10 22
- 4. Programming L-16 22
- 5. Troubleshooting L-29 22
- PID Instruction (FNC 88) 23
- 1. Introduction 25
- 1.1.1 Analog input control 26
- 1.1.2 Analog output control 27
- 1 Introduction 28
- Common Items 28
- 2.1 Types of Analog Products 29
- 2.1.2 Special adapter 30
- 3. FX3UC-32MT-LT(-2) PLC 31
- 4. FX3G Series PLC 31
- 2.1.3 Special function block 32
- 2.2.3 Special function block 34
- 3.1 FX3U Series PLC 36
- 3.2 FX3UC Series PLC 38
- 2. FX3UC-32MT-LT(-2) PLC 39
- 1. FX3UC (D, DSS) Series PLC 40
- 3.3 FX3G Series PLC 42
- 4.1 Analog Input 45
- FX2N-2AD 46
- 4.1.3 FX3U-4AD 47
- FX2N-4AD 48
- 4.1.5 FX3UC-4AD 49
- 4.1.6 FX2NC-4AD 50
- 4.1.7 FX2N-8AD 51
- 4.1.8 FX3G-2AD-BD 52
- 4.2 Analog Output 53
- 4.2.2 FX2N-2DA 54
- 4.2.3 FX3U-4DA 55
- 4.2.4 FX2N-4DA 56
- 4.2.5 FX2NC-4DA 57
- 4.2.6 FX3G-1DA-BD 58
- 4.3 Mixed Analog Input/Output 59
- • -10V to +10V DC: 60
- -10V to +5V 0mA to 10mA 61
- 4.3.3 FX0N-3A 62
- 4.4 Temperature Sensor Input 63
- 4.4.2 FX3U-4AD-PTW-ADP 64
- 4.4.3 FX3U-4AD-PNK-ADP 65
- 4.4.4 FX3U-4AD-TC-ADP 66
- 4.4.5 FX2N-4AD-PT 67
- 4.4.6 FX2N-4AD-TC 68
- 4.4.7 FX2N-8AD 69
- 4.4.8 FX2N-2LC 70
- 5. Version Number 71
- 5.2 Special adapter 72
- 6.1 How to Use the Manuals 73
- 6.2.3 Manuals of analog units 76
- 1. Main unit 78
- 3. Extension unit 79
- 4. Peripheral unit 80
- 5. Manual 80
- Series PLC 83
- Set input mode: 7 89
- Set input mode: 8 89
- Digital value 89
- 3UC-4AD) 92
- 3.2.3 Cable (FX3UC-4AD) 93
- 3G/FX3U Series 94
- 2 Input mode (BFM #0) setting 98
- 5. Buffer Memory (BFM) 100
- 2. Outline of buffer memory 101
- 3U/FX3UC PLCs.) 101
- ( ) 102
- • Gain data (BFM #51 to #54) 103
- 5 Buffer Memory (BFM) 104
- 5.4 Buffer Memory Details 107
- 1. Application 109
- (BFM #2 to #5) 110
- 5.4.12 BFM #29: Error status 117
- (Channels 1 to 4: BFM #41 to 118
- 2. Offset/gain data change 119
- 1. Sampling cycle 127
- 3 Determine the offset data 131
- 4 Determine the gain data 131
- 5 Create a sequence program 132
- 1. Conditions 133
- 3G, FX3U, FX3UC Series PLCs 134
- 3U, FX3UC Series PLCs 136
- 3. Cautions 141
- 8. Troubleshooting 142
- 8.4 Error Status Check 143
- 8 Troubleshooting 144
- Controllers 145
- 1. Outline 147
- 1 Outline 148
- 1. Version check 149
- 1. GX Developer 149
- 2. FX-30P 149
- 2.1 Generic Specifications 150
- 2 Specifications 151
- 2.4 A/D Conversion Time 152
- 3. Wiring 154
- 3.1 Terminal Layout 155
- 3 Wiring 156
- 3.3 Power Supply Line 157
- 3.4 Analog Input Line 158
- 3.5 Grounding 158
- 4. Programming 159
- 4 Programming 160
- 4.2 List of Special Devices 161
- 4.3 Switching of Input Mode 162
- 4.4 Input Data 163
- 4.5 Averaging Time 164
- 4.6 Error Status 165
- 3G, FX3U, FX3UC Series PLC) 166
- 3U, FX3UC Series PLC) 166
- 4.7 Model Code 167
- 4.8 Basic Program Example 168
- 1. Input characteristics 170
- Digital output to 170
- 3G Series PLC) 172
- 6. Troubleshooting 173
- 6.3 Special Device Check 174
- 6.4 Program Check 174
- 6.5 Error Status Check 175
- 6 Troubleshooting 176
- 2. Specifications 182
- 2.3 A/D Conversion Time 184
- 1. Cables 187
- 2. Termination of cable end 187
- 3.3 Analog Input Line 188
- 3.4 Grounding 188
- 2. Program Example 194
- Digital output 196
- 6.5 Program Check 198
- 6.6 Error Status Check 198
- Series PLC 203
- Set output mode: 1 208
- Set output mode: 2 208
- Set output mode: 4 208
- Set output mode: 3 208
- 3G/FX3U Series PLC 211
- 3.4 Analog Output Wiring 212
- 1 Unit number check 213
- Creation of sequence program 214
- 5.3 Buffer Memory List (BFM) 218
- 3U-4DA EEPROM 222
- 5.4.4 BFM #6: Output status 223
- 3U-4DA to the PLC. For this 228
- 3U-4DA may be defective 228
- 6. Table Output Function 238
- 6.2 Preparation of data table 239
- 6 Table Output Function 240
- D5014 K2000 242
- 5. Example of pattern output 243
- Invalid* 244
- Data table transfer command 244
- Register type 244
- 4 Determine the offset data 254
- 5 Determine the gain data 254
- 6 Create a sequence program 255
- Operation) 260
- 3U-4DA (Factory Default) 263
- 9. Troubleshooting 264
- 3. Power supply error (b2) 265
- 9 Troubleshooting 266
- -4DA-ADP 270
- 1. FX-30P 271
- 4000 4080 273
- Digital input 273
- Analog output 273
- 2.4 D/A Conversion Time 274
- The head 278
- 3.4 Analog Output Line 280
- 4.3 Switching of Output Mode 284
- 4.5 Output Setting Data 286
- 6. Troubleshooting 292
- 2.3 D/A Conversion Time 302
- 1. Cable 305
- 3.3 Analog Output Line 306
- Specified digital output 312
- 2.4 Conversion Time 322
- 2. Conversion during PLC STOP 323
- 4.4 Switching of Output Mode 333
- 3U, FX3UC Series PLCs) 334
- 4.7 Input Data 335
- 4.8 Output Setting Data 336
- 4.9 Averaging Time 337
- 4.10 Error Status 338
- 4.11 Model Code 340
- 4.12 Basic Program Example 341
- -4AD-PT-ADP 354
- 2.5 Temperature Measurement 359
- 2. Termination of cable ends 362
- 3.6 Grounding 364
- 4.4 Temperature Measurement 369
- 5. Troubleshooting 376
- 5.4 Program Check 377
- 5.5 Error Status Check 377
- 5 Troubleshooting 378
- -4AD-PTW-ADP 382
- Termination of cable end 390
- (0.35") 390
- 392
- 3.6 Caution Regarding Wiring 421
- 3.7 Grounding 421
- 4.4 Input sensor selection 426
- 4.5 Temperature Measurement 427
- 4.6 Averaging Time 428
- 4.7 Error Status 429
- 4.8 Model Code 432
- 4.9 Basic Program Example 433
- -4AD-TC-ADP 442
- 3.5 Wiring of Thermocouple 452
- centigrade ( 457
- C) for the 1st adapter: 457
- 4.4 Selection of Type K or J 458
- 3U, FX3UC Series PLC 466
- 4. TC-ADP hardware error (b6) 469
- 1. Instruction format 475
- 2. Set data 475
- 3. Target devices 475
- 1. 16-bit PID operation 475
- Explanation of set items 476
- 3. Parameter 477
- 3 Parameter 478
- 3.2 Details of Parameters 479
- Target value (SV) 480
- Measured value (PV) 480
- Setting range: 0 to 99[%] 482
- P): (S3)+3 483
- I): (S3)+4 483
- Setting range: 0 to 100[%] 485
- > TD1 486
- 4. Auto-Tuning 488
- 4.1.2 Auto-tuning procedure 489
- 4.1 Limit Cycle Method 490
- 4.2 Step Response Method 491
- 4 Auto-Tuning 492
- Setting contents 493
- Warranty 501
- Revised History 502
- MODEL CODE 504
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