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Hodnocené. / 5. Na základě hodnocení zákazníků
172 UDC 6300 Process Controller Product Manual 1/03
5.11 2 Loops of Control Overview
Introduction
The UDC6300 can operate using Two Independent Loops of control or
Internal Cascade control.
TWO INDEPENDENT LOOPS - See Functional Overview Block
Diagrams for Loop 1(Figure 5-1) and Loop 2 (Figure 5-2) and Table 5-23
for selections based on these diagrams.
The following rules apply for Two independent loops:
• Current Output on Loop 2 requires 2nd Current output
• Loop 2 Current Duplex output is limited to 2nd Current output signal
only
• Loop 2 Digital output is always dedicated to Digital Output 4
• No Time Duplex Outputs on Loop 2
• No ON/OFF or 3 Position Step algorithms in Loop 2
INTERNAL CASCADE CONTROL - uses Loop 2 as the primary loop
with the output of loop 2 being the remote setpoint of Loop 1.
See Functional Overview Block Diagrams (Figure 5-3) and Table 5-23 for
selections based on these diagrams.
The following rules apply for Internal Cascade control:
• Loop 2 must be the primary loop
• Loop 1 must be the secondary (internal or slave) loop because all output
forms exist on Loop 1
• Loop 1 remote setpoint is fixed as Loop 2 output.
Selections
Refer to Figures 5-1, 5-2, and 5-3 Block Diagrams and Table 5-23 for
selections based on these diagrams.
Table 5-23 Control Loop Selections
LOOP INPUT 1 INPUT 2, 3, 4, Low
Level 5,
Pulse 5
INPUT
ALG1
INPUT
ALG2
LOOP 1
Process Variable Via configuration or
Digital Input
3, 4, 5, or 6
Via Configuration or
Digital Input
1, 2, 3, 4, 5,6
Yes Yes
Remote Setpoint Via configuration or
Digital Input
3, 4, 5, or 6
Via configuration or
Digital Input
3, 4, 5, or 6
Yes Yes
Feedforward Yes Yes Yes Yes
LOOP 2
Process Variable Via configuration or
Digital Input
4, 5, or 6
Via Configuration or
Digital Input
2, 4, 5, or 6
Yes Yes
Remote Setpoint Via configuration or
Digital Input
4, 5, or 6
Via Configuration or
Digital Input
2, 4, 5, or 6
Yes Yes
Feedforward Yes Yes Yes Yes
Continued on next page
- UDC 6300 1
- Process Controller 1
- Product Manual 1
- About This Publication 3
- Table of Contents 5
- Table of Contents, continued 5
- Figures 8
- Tables 9
- Tables, continued 10
- Acronyms 12
- References 13
- Section 1 – Overview 15
- 1.1 Introduction 15
- 1.1 Introduction, Continued 16
- 1.2 Operator Interface 18
- Table 1-1 Function of Keys 19
- Section 2 – Installation 21
- 2.1 Overview 21
- 2.1 Overview, Continued 22
- Model number 23
- 24Vac/dc 115 Vac 230 Vac 25
- POWER SELECT JUMPER PLACEMENT 25
- 2.4 Mounting 27
- 2.4 Mounting, Continued 28
- 2.5 Wiring 29
- 2.5 Wiring, Continued 30
- 2.6 Wiring Diagrams 31
- Line voltage wiring 32
- High level input 33
- Optional Input 5 34
- (Low Level Inputs) 34
- Current Output 36
- 2nd Current Output 4–20mA 37
- Section 3 – Configuration 41
- 3.1 Overview 41
- 3.2 Configuration Prompts 42
- CYC4SEC PVEU VALx GAIN VALx 43
- 3.3 How To Get Started 44
- 3.4 Configuration Tips 45
- 3.5 Configuration Procedure 46
- Set this group last 48
- Duplex Heat Cool 48
- Loop) 52
- 3.9 Accutune Set Up Group 54
- 3.17 Options Set Up Group 72
- 3.18 Communications Group 74
- 3.19 Alarms Set Up Group 76
- (Process Variable) 77
- (Communications) 77
- 3.21 Calib Group 80
- 3.22 Status Group 80
- Keep a record 81
- 4.1 Overview 85
- 4.5 Accutune Set Up Group 93
- ATTENTION 100
- PV (or RSP) = K x 102
- (A - B) 104
- (Calc Hi - Calc Lo)) 104
- PV or SP = K 104
- Continued 109
- Continued on next page 109
- LT A or B GT A 115
- These prompts appear only 117
- 4.13 Options Set Up Group 134
- Introduction 142
- Communications group 142
- 4.15 Alarms Set Up Group 147
- 4.17 Calibration Data 155
- 4.18 Status Test Data 155
- Section 5 – Operation 157
- 5.1 Overview 157
- Lower Display 159
- Upper Displa 159
- 5.3 Enter a Security Code 160
- Operator Interface 161
- Decimal point 161
- Annunciators 162
- Bargraphs 163
- Setpoint Bargraph 163
- Σ (Sigma) 165
- 5.5 Start Up Procedure 167
- 5.6 Operating Modes 168
- Upper Display 170
- continued 171
- CONTROL2 172
- 5.7 Setpoints, Continued 175
- 5.8 Setpoint Rate 179
- 5.9 Single Setpoint Ramp 180
- Available selections 183
- The switchover 184
- The PV value 185
- X= 1 or 2 185
- Single Loop 187
- Controller 187
- Loop 2 188
- Internal Cascade 189
- Override rules 190
- Table 5-25 191
- Parameters 193
- Internal cascade 196
- 5.15 Input Math Algorithms 198
- Totalizer function 200
- 5.16 Logic Gate Operation 201
- 5.17 Digital Outputs 203
- How it works 212
- Configuration 212
- 5.20 Accutune™ 213
- 5.20 Accutune™, Continued 214
- 5.21 Input 5 - Pulse Input 222
- OUT and the estimated 3PStep 225
- 5.23 Auto/Manual Station 226
- Description 227
- Input 1 Span 228
- Input 2 Span 228
- Operation 229
- 6.1 Overview 231
- (IEC=0.00385) 232
- Disconnect the field 233
- 1 to 5 Volts or 4–20 235
- X = 1, 2, 3, or 4 236
- INX SPAN 237
- Junction 240
- Resistor 240
- Precision 241
- RTD Inputs 242
- Radiamatic, Millivolts 243
- Volts, or milliamps 243
- Equipment needed 246
- Range Specifications 246
- IN5 SPAN 248
- 7.1 Overview 255
- 7.3 2nd Current Output 259
- CUR OUT2 261
- WARNING—SHOCK HAZARD 263
- 8.1 Overview, Continued 264
- 8.2 Troubleshooting Aids 265
- Software 266
- FAILSAFE 267
- 8.4 Status Tests 268
- Table 8-5 Status Tests 269
- (Lower Display) 270
- 8.5 Background Tests 271
- Output(s) failure 276
- Failure 276
- (Key Name) 278
- Rear of case 281
- Parts Identification 282
- (Part Number 30757007-501) 283
- (Part Number 30757071-501) 283
- Part Number 30757010-501) 283
- 8.9 Maintenance 291
- Section 9 – Parts List 293
- 9.1 Exploded View 293
- (opening must be widened) 295
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