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230 Parameter listing and descriptions
ACH550-01 User's Manual
Group 25: CRITICAL SPEEDS
This group defines up to three critical speeds or ranges of
speeds that are to be avoided due, for example, to mechanical
resonance problems at certain speeds.
Code Description Range
2501 CRIT SPEED SEL
0=OFF, 1=ON
Sets the critical speeds function on or off. The critical speed function
avoids specific speed ranges.
0 =
OFF – Disables the critical speeds function.
1 =
ON – Enables the critical speeds function.
Example: To avoid speeds at which a fan system vibrates badly:
• Determine problem speed ranges. Assume they are found to be
18…23 Hz and 46…52 Hz.
• Set 2501
CRIT SPEED SEL = 1.
• Set 2502
CRIT SPEED 1 LO = 18 Hz.
• Set 2503
CRIT SPEED 1 HI = 23 Hz.
• Set 2504
CRIT SPEED 2 LO = 46 Hz.
• Set 2505
CRIT SPEED 2 HI = 52 Hz.
2502 CRIT SPEED 1 LO 0…30000 rpm /
0…500 Hz
Sets the minimum limit for critical speed range 1.
• The value must be less than or equal to 2503
CRIT SPEED 1 HI.
• Units are rpm, unless 9904
MOTOR CTRL MODE = 3 (SCALAR:FREQ), in
which case units are Hz.
2503 CRIT SPEED 1 HI 0…30000 rpm /
0…500 Hz
Sets the maximum limit for critical speed range 1.
• The value must be greater than or equal to 2502
CRIT SPEED 1 LO.
• Units are rpm, unless 9904
MOTOR CTRL MODE = 3 (SCALAR:FREQ), in
which case units are Hz.
f
output
52
46
23
18
f
REF
(Hz)
f
1L
18
f
2L
46
f
1H
23
f
2H
52
- User’s Manual 1
- ACH550-01 Drives 1
- ACH550-01 Drive manuals 2
- 3AFE68258537 REV F 3
- EFFECTIVE: 2009-07-07 3
- Table of contents 5
- 2 Table of contents 6
- Table of contents 3 7
- 4 Table of contents 8
- Contents of this manual 9
- Use of warnings and notes 10
- Safety instructions 10
- Drive package 13
- Lifting the drive 14
- Product and service inquiries 15
- Product training 15
- 12 Contents of this manual 16
- Preparing for installation 17
- Drive identification 18
- IP21 drive labels 19
- Type designation 20
- Serial number 20
- Frame size 21
- 00467918.xls C 22
- Motor identification 23
- Motor compatibility 25
- Suitable mounting location 27
- Wiring and EMC considerations 30
- Cabling instructions 32
- Input power (mains) cables 32
- Motor cables 32
- Effective motor cable shields 34
- Control cables 36
- Analogue cables 38
- Digital cables 38
- Tools required 39
- 36 Preparing for installation 40
- Installing the drive 41
- Removing front cover (IP54) 43
- Removing front cover (IP21) 44
- Mounting the drive (IP54) 45
- Mounting the drive (IP21) 46
- Supply cable 50
- Motor and motor cable 50
- Power wiring (IP54) 51
- Control wiring (IP54) 54
- Power wiring (IP21) 55
- Control wiring (IP21) 58
- 56 Installing the drive 60
- Installing the drive 57 61
- Re-install cover (IP54) 62
- Re-install cover (IP21) 63
- Apply power 64
- W2 U2 V2W2 U2 V2 65
- 62 Installing the drive 66
- Start-up and control panel 67
- Start-up 68
- Status information 72
- Parameters mode 74
- Assistants mode 76
- Changed parameters mode 80
- Drive parameter backup mode 81
- Time and date mode 88
- 01.01.08 89
- I/O settings mode 91
- Fault logger mode 92
- Application macros and wiring 93
- Restoring defaults 95
- 1. HVAC default 96
- HVAC default 97
- 2. Supply fan 98
- Supply fan 99
- 3. Return fan 100
- © Copyright 2007 ABB 100
- ACH550-01 User's Manual 101
- Return fan 101
- 4. Cooling tower fan 102
- Cooling tower fan 103
- 5. Condenser 104
- Condenser 105
- 6. Booster pump 106
- Booster pump 107
- 7. Pump alternation 108
- Pump alternation 109
- Internal timer 111
- 10. Floating point 114
- Floating point 115
- 11. Dual setpoint PID 116
- Dual setpoint PID 117
- 13. E-bypass (USA only) 120
- E-bypass 121
- 14. Hand control 122
- Hand control 123
- Two-wire sensor/transmitter 124
- Three-wire sensor/transmitter 124
- What this chapter contains 125
- Using the timer 126
- 1. Enabling the timer 128
- 2. Setting the time period 129
- 3. Creating a timer 130
- 4. Connecting parameters 131
- Example of timer use 133
- TIMER 1 SRC 134
- 00:00:00 136
- 00:30:00 136
- System overview 138
- Terminated 140
- 141
- 5302 EFB STATION ID 142
- PAR EDIT 142
- EXIT SAVE 142
- Serial communications 139 143
- 140 Serial communications 144
- Fieldbus adapter (EXT FBA) 145
- FBA) module 147
- Serial communications 145 149
- 146 Serial communications 150
- Drive control parameters 151
- 148 Serial communications 152
- Serial communications 149 153
- 150 Serial communications 154
- System control inputs 155
- 152 Serial communications 156
- Communication fault functions 157
- 154 Serial communications 158
- Serial communications 155 159
- Fault handling 160
- 158 Serial communications 162
- Parameter groups 163
- Group 99: START-UP DATA 166
- Group 01: OPERATING DATA 170
- Group 03: FB ACTUAL SIGNALS 176
- Group 04: FAULT HISTORY 180
- Group 10: START/STOP/DIR 182
- Group 11: REFERENCE SELECT 185
- Group 12: CONSTANT SPEEDS 192
- Group 13: ANALOGUE INPUTS 197
- Group 14: RELAY OUTPUTS 199
- Group 15: ANALOGUE OUTPUTS 204
- Group 16: SYSTEM CONTROLS 207
- Group 17: OVERRIDE 215
- Group 20: LIMITS 219
- Group 21: START/STOP 223
- Group 22: ACCEL/DECEL 226
- Group 23: SPEED CONTROL 229
- Group 25: CRITICAL SPEEDS 234
- Group 26: MOTOR CONTROL 236
- Group 29: MAINTENANCE TRIG 240
- Group 30: FAULT FUNCTIONS 242
- Group 31: AUTOMATIC RESET 249
- Group 32: SUPERVISION 251
- Group 33: INFORMATION 254
- 44% 255
- Group 35: MOTOR TEMP MEAS 259
- Group 36: TIMED FUNCTIONS 263
- Group 37: USER LOAD CURVE 268
- UNDERLOAD CURVE provided 270
- MOTOR NOM FREQ 270
- EU (50 Hz): 271
- US (60 Hz): 271
- Overview of PID controllers 272
- Process PID controller (PID1) 274
- Group 40: PROCESS PID SET 1 275
- Group 41: PROCESS PID SET 2 288
- Group 42: EXT / TRIM PID 289
- Group 45: ENERGY SAVING 291
- Group 51: EXT COMM MODULE 292
- Group 52: PANEL COMM 294
- Group 53: EFB PROTOCOL 296
- Group 64: LOAD ANALYZER 299
- Group 81: PFA CONTROL 303
- Cooling water 322
- Group 98: OPTIONS 325
- Diagnostics and maintenance 367
- Diagnostics displays 368
- Correcting faults 369
- : ACH550 377
- Fault resetting 378
- Correcting alarms 379
- Maintenance intervals 384
- Heatsink 385
- Main fan replacement 385
- 3AUA000000404 389
- Capacitors 390
- Control panel 391
- Technical data 393
- IEC ratings, 380…480 V drives 394
- IEC ratings, 208…240 V drives 395
- 396 Technical data 400
- Fuses, 380…480 V drives 400
- Circuit breakers 402
- Technical data 399 403
- Input power (mains) cable 404
- Technical data 401 405
- …R5 because of its lower 406
- Motor connection 408
- Motor cable length 409
- Motor thermal protection 411
- Group 35: MOTOR TEMP MEAS) 411
- Control connections 412
- Hardware description 413
- 410 Technical data 414
- Efficiency 416
- Technical data 413 417
- Air flow, 380…480 V drives 417
- Dimensions and weights 418
- Mounting dimensions 419
- Weights and mounting screws 420
- 420 Technical data 424
- Technical data 421 425
- 422 Technical data 426
- Technical data 423 427
- 424 Technical data 428
- Technical data 425 429
- 426 Technical data 430
- Technical data 427 431
- 428 Technical data 432
- Technical data 429 433
- 430 Technical data 434
- Technical data 431 435
- 432 Technical data 436
- Technical data 433 437
- R6 (IP21 / UL Type 1) 437
- 434 Technical data 438
- Materials 439
- Applicable standards 440
- CE marking 440
- C-Tick marking 441
- UL marking 441
- Product protection in the USA 444
- Contact information 445
- 442 Technical data 446
- Technical data 443 447
- 444 Technical data 448
- 3AFE68258537 REV F / EN 474
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