model 2704 controller installation and operation handbook - Soliton

More documents

Recommendations

Info

Loop Set Up 2704 Controller 9.3.1. LP1 SETUP (SP Aux) Page Table Number: 9.3.1 This list allows you to select the setpoint value and setpoint limits specific to the auxiliary loop. LP1 SETUP (SP Aux) Page Parameter Name Parameter Description Value Default Access Level SP Low Limit Auxiliary setpoint 1 low limit Range units SP High Limit Auxiliary setpoint 1 high limit Range units OVR SP Trim Override loop setpoint trim Range units Local SP Working SP The setpoint which the controller reverts to when not in cascade, ratio or override The current value of the setpoint in use Range units Range units L3 L3 L3. Only appears when Override control is configured L1 L1 This table does not appear if the Loop Type is Ratio. 9-8 Installation and Operation Handbook. Part No HA026502 Issue 1.0 Apr-00
2704 Controller Loop Set Up 9.4. CASCADE CONTROL 9.4.1. Overview Cascade control is a technique used to enable processes with long time constants to be controlled with the fastest possible response to process disturbances, including setpoint changes, whilst still minimising the potential for overshoot. It is a combination of two PID controllers, where the output signal from one (the master) forms the setpoint for the other (the slave). For cascade control to be effective the slave loop should be more responsive than the master. 9.4.2. Simple Cascade The main process is controlled using the master PID loop, the output of which is used to determine the setpoint of the slave. The implementation of cascade control in the 2704 is available as a standard option. ie ; it is not necessary to order a dual loop controller to perform cascade control. 9.4.3. Cascade with Feedforward An available option with cascade control is feedforward. It allows either the master PV, master SP or user defined variable to be fed forward so that it directly influences the slave setpoint. The master PID output contribution of the slave setpoint is limited by the trim limit set in engineering units. This parameter also adjusts the gain of the feedforward path. A typical application for SP feedforward could be in a heat treatment furnace, where it can be used to extend the life of heating elements by limiting their maximum operating temperature. An application using PV feedforward could be in autoclaves or reactor vessels where it is sometimes required to protect the product from excessive temperature gradients (also referred to as Delta T Control). 9.4.3.1. Standard Feedforward Standard feedforward is used if there is a requirement for some additional parameter, for example an analogue input, to trim the master PID output value before the slave setpoint is applied. An application may be a liquid temperature control system using cascade control of heater temperature where variations in control rate can be directly fed forward into the slave loop, modifying heater temperature and giving rapid compensation 9.4.4. Auto/Manual Operation Auto/Manual operates on both master and slave loops. When the controller is placed in manual the slave working setpoint will track the value of the slave process value continually, therefore ensuring bumpless transfer. When cascade is deactivated the master loop will monitor the setpoint of the slave loop and provide a smooth transition of output power when the loop moves back to cascade mode. Installation and Operation Handbook. Part No HA026502 Issue 1.0 Apr-00 9-9
Page 1 and 2:
2704 Controller Contents MODEL 2704
Page 3 and 4:
2704 Controller Contents 5. CHAPTER
Page 5 and 6:
2704 Controller Contents 7. CHAPTER
Page 7 and 8:
2704 Controller Contents 9.5.1. Int
Page 9 and 10:
2704 Controller Contents 13. CHAPTE
Page 11 and 12:
2704 Controller Contents 18. CHAPTE
Page 13 and 14:
2704 Controller Contents B. APPENDI
Page 15 and 16:
2704 Controller Contents LIST OF FI
Page 17 and 18:
2704 Controller Contents Figure 18-
Page 19 and 20:
2704 Controller Introduction 1. Cha
Page 21 and 22:
2704 Controller Introduction 1.2. W
Page 23 and 24:
2704 Controller Introduction ➃
Page 25 and 26:
2704 Controller Introduction 1.4.1.
Page 27 and 28:
2704 Controller Introduction 1.6. I
Page 29 and 30:
2704 Controller Installation 2. CHA
Page 31 and 32:
2704 Controller Installation 2.1.3.
Page 33 and 34:
2704 Controller Installation • Te
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
2704 Controller Installation 2.4. O
Page 41 and 42:
Page 43 and 44:
2704 Controller Installation I/O Mo
Page 45 and 46:
2704 Controller Installation Transd
Page 47 and 48:
Page 49 and 50:
2704 Controller Getting Started 3.
Page 51 and 52:
2704 Controller Getting Started 3.1
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
2704 Controller Getting Started 5.
Page 63 and 64:
Page 65 and 66:
2704 Controller Getting Started Wor
Page 67 and 68:
2704 Controller Getting Started Ins
Page 69 and 70:
HUMIDITY INPUT OPERS TIMER BLOCKS P
Page 71 and 72:
2704 Controller Access Levels 4. CH
Page 73 and 74:
2704 Controller Access Levels If a
Page 75 and 76:
2704 Controller The Summary Page 5.
Page 77 and 78:
2704 Controller Programmer Operatio
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108: 2704 Controller Programmer Operatio
Page 109 and 110: 2704 Controller Programmer Operatio
Page 111 and 112: 2704 Controller Digital Programmer
Page 117 and 118: 2704 Controller Alarm Operation 7.
Page 119 and 120: 2704 Controller Alarm Operation 7.2
Page 139 and 140: 2704 Controller Tuning 8. CHAPTER 8
Page 141 and 142: 2704 Controller Tuning 8.2. AUTOMAT
Page 143 and 144: 2704 Controller Tuning Typical auto
Page 145 and 146: 2704 Controller Tuning 8.4.3. To Vi
Page 147 and 148: 2704 Controller Tuning 8.5.1. Setti
Page 149 and 150: 2704 Controller Tuning 8.6. GAIN SC
Page 151 and 152: 2704 Controller Loop Set Up 9. CHAP
Page 153 and 154: 2704 Controller Loop Set Up 9.2. TO
Page 155 and 156: 2704 Controller Loop Set Up 9.2.2.
Page 157: 2704 Controller Loop Set Up 9.3. TO
Page 161 and 162: 2704 Controller Loop Set Up 9.5. RA
Page 163 and 164: 2704 Controller Loop Set Up 9.6. OV
Page 165 and 166: 2704 Controller Loop Set Up 9.7. CO
Page 167 and 168: 2704 Controller Loop Set Up 9.8. OU
Page 169 and 170: 2704 Controller Loop Set Up 9.9. LP
Page 171 and 172: 2704 Controller Controller Applicat
Page 183 and 184: 2704 Controller Input Operators 11.
Page 195 and 196: 2704 Controller Totaliser, Timer. C
Page 209 and 210:
2704 Controller User Values 13. CHA
Page 211 and 212:
2704 Controller User Values 5. Pres
Page 213 and 214:
2704 Controller User Values 13.3. W
Page 215 and 216:
2704 Controller Analogue Operators
Page 217 and 218:
Page 219 and 220:
Page 221 and 222:
2704 Controller Logic Operators 15.
Page 223 and 224:
2704 Controller Logic Operators 15.
Page 225 and 226:
2704 Controller Digital Communicati
Page 227 and 228:
2704 Controller Digital Communicati
Page 229 and 230:
2704 Controller Standard IO 17. CHA
Page 231 and 232:
2704 Controller Standard IO 17.2. P
Page 233 and 234:
2704 Controller Standard IO 10. Pre
Page 235 and 236:
2704 Controller Standard IO 17.3. A
Page 237 and 238:
2704 Controller Standard IO To set
Page 239 and 240:
2704 Controller Standard IO 17.6. S
Page 241 and 242:
2704 Controller Module IO 18. CHAPT
Page 243 and 244:
2704 Controller Module IO 18.2. MOD
Page 245 and 246:
2704 Controller Module IO 18.3.1. D
Page 247 and 248:
2704 Controller Module IO 18.3.3. T
Page 249 and 250:
2704 Controller Module IO 18.3.6. P
Page 251 and 252:
2704 Controller Module IO 18.3.9. P
Page 253 and 254:
2704 Controller Module IO 18.3.11.
Page 255 and 256:
2704 Controller Module IO 18.4. MOD
Page 257 and 258:
2704 Controller Module IO [Units] I
Page 259 and 260:
Page 261 and 262:
Page 263 and 264:
2704 Controller Transducer Scaling
Page 265 and 266:
Page 267 and 268:
Page 269 and 270:
Page 271 and 272:
Page 273 and 274:
Page 275 and 276:
Page 277 and 278:
2704 Controller Diagnostics 20. CHA
Page 279 and 280:
2704 Controller Diagnostics Note 1.
Page 281 and 282:
2704 Controller Appendix A A. APPEN
Page 283 and 284:
2704 Controller Appendix A B. QUICK
Page 285 and 286:
2704 Controller Safety and EMC Info
Page 287 and 288:
Page 289 and 290:
Page 291 and 292:
2704 Controller Technical Specifica
Page 293 and 294:
Page 295 and 296:
Page 297 and 298:
Page 299 and 300:
Page 301 and 302:
Page 303 and 304:
show all

model 2704 controller installation and operation handbook - Soliton

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?