YASKAWA Varispeed G7 Specifications Page 284
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Drive Protection
6-67
Drive Protection
This section explains the functions for protecting the Drive and the braking resistor.
" Performing Overheating Protection on Mounted Braking Resistors
Perform overheating protection on Drive-mounted braking resistors (Model: ERF-150WJ ##).
When overheating in a mounted braking resistor is detected, an alarm RH (Mounted braking resistor overheat-
ing) is displayed on the Digital Operator, and the motor coasts to a stop.
!Related Parameters
Multi-function Contact Outputs (H2-01 to H2-05)
Parameter
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Operation
Control Methods
Display
V/f
V/f
with
PG
Open
Loop
Vector
1
Flux
Vector
Open
Loop
Vector
2
L8-01
Internal
Dynamic
Braking
Resistor
Protection
Selection
Selects the DB protection only
when using 3% duty cycle
heatsink mount Yaskawa braking
resistor. This parameter does not
enable or disable the DB
function of the Drive.
0: Not Provided
1: Provided
0 to 1 0 NoAAAAA
DB Resistor
Prot
Setting
Value
Function
Control Methods
V/f
V/f
with
PG
Open
Loop
Vector
1
Flux
Vector
Open
Loop
Vector
2
D Braking resistor fault (ON: Resistor overheat or braking transistor fault) Yes Yes Yes Yes Yes
INFO
The most likely causes of RH (Mounted braking resistor overheating) being detected are that the deceleration
time is too short or that the motor regeneration energy is too large. In these cases, lengthen the deceleration
time or replace the Braking Resistor Unit with one with a higher breaking capacity.
- G7 Drive 1
- Technical Manual 1
- Warnings and Cautions 2
- ! Intended Use 3
- Safety Precautions 4
- Always heed the warnings 5
- Warning Information 5
- Registered Trademarks 7
- Contents 8
- Handling Drives 14
- " Varispeed G7 Models 15
- " Checks 16
- " Nameplate Information 16
- !Drive Model Numbers 17
- !Drive Specifications 17
- " Component Names 18
- NPJT31278-1-0 18
- Fig 1.6 Drive Appearance 19
- Open Chassis Drives (IP00) 20
- NEMA Type 1 Drives (IP 20) 21
- " Installation Site 23
- Removing the Terminal Cover 25
- Attaching the Terminal Cover 26
- Front Cover 27
- !Removing the Front Cover 28
- !Mounting the Front Cover 28
- ! Attaching the Front Cover 30
- Connection Diagram 33
- Wiring Main Circuit Terminals 36
- Wire Size * Terminal Screw 42
- Main Circuit Configurations 45
- Standard Connection Diagrams 46
- Wiring the Main Circuits 47
- Inductive 50
- !Ground Wiring 51
- Digital 54
- ! Sinking/Sourcing Mode 59
- Branch circuit 60
- protection supplied 60
- by others 60
- " Wiring Checks 61
- " Wiring 67
- A-phase pulses 69
- B-phase pulses 69
- !Wiring the PG-D2 70
- !Wiring the PG-X2 70
- " Wiring Terminal Blocks 71
- PG power supply 72
- Capacitor for momentary 72
- !PG-D2/PG-X2 73
- Digital Operator and Modes 74
- -QUICK 75
- A1-02= 3 *3* 75
- Flux Vector 75
- " Digital Operator Keys 76
- Drive Mode Indicators 77
- " Run Indicator 78
- " Stop Indicator 78
- " Drive Modes 78
- " Drive Mode 80
- " Quick Programming Mode 82
- Advanced Programming Mode 83
- !Setting User Parameters 84
- H1-01=24 85
- " Verify Mode 86
- " Autotuning Mode 87
- Trial Operation 90
- Trial Operation Procedure 91
- " Power ON 92
- Checking the Display Status 93
- " Basic Settings 94
- !Overview of Settings 96
- !Setting the Control Method 97
- " Autotuning 98
- IMPORTANT 100
- " Application Settings 103
- " No-load Operation 103
- " Loaded Operation 104
- !Password (A1-04 and A1-05) 105
- Adjustment Suggestions 106
- Recommended 107
- User Parameters 112
- User Parameter Descriptions 113
- Description 115
- Control Methods 115
- User Parameter Tables 121
- !User-set Parameters: A2 122
- Application Parameters: b 123
- !DC Injection Braking: b2 125
- !Speed Search: b3 126
- !Timer Function: b4 128
- !PID Control: b5 128
- Adjustment 129
- PID output. This can be used 129
- !Dwell Functions: b6 131
- !DROOP Control: b7 131
- !Energy Saving: b8 132
- !Zero Servo: b9 132
- Autotuning Parameters: C 133
- !Motor Slip Compensation: C3 135
- !Torque Compensation: C4 136
- Parameter 137
- !Carrier Frequency: C6 138
- Reference Parameters: d 139
- !Reference Limits: d2 141
- !Jump Frequencies: d3 141
- !Reference Frequency Hold: d4 142
- !Torque Control: d5 142
- !Field Control: d6 144
- !Motor Setup: E2 147
- ! Motor 2 V/f Pattern: E3 148
- Output voltage (V) 149
- Frequency (Hz) 149
- !Motor 2 Setup: E4 150
- " Option Parameters: F 152
- !Analog Reference Card: F2 155
- !Digital Reference Card: F3 156
- !Analog Monitor Cards: F4 156
- Setting 163
- Function 163
- !Analog Inputs: H3 166
- H3-05,H3-09 Settings 168
- !MODBUS Communications: H5 170
- !Pulse Train I/O: H6 171
- !Motor Overload: L1 172
- !Power Loss Ridethrough: L2 173
- !Stall Prevention: L3 174
- !Reference Detection: L4 177
- !Fault Restart: L5 178
- !Torque Detection: L6 179
- !Hardware Protection: L8 183
- " n: Special Adjustments 185
- !High-slip Braking: n3 186
- !Speed Estimation: n4 187
- !Feed Forward: n5 190
- ! Copy Function: o3 194
- " T: Motor Autotuning 195
- " U: Monitor Parameters 197
- U1-11= 00000000 198
- U1-40= 00000000 201
- ! Fault Trace: U2 203
- !Fault History: U3 205
- Setting Range Unit 207
- Factory Setting 207
- Frequency 212
- Voltage 212
- Name Unit Factory Setting 214
- Parameter Settings by 218
- Frequency Reference 219
- 3.5 to 13.2 V 221
- !Related Parameters 222
- Run Command 224
- Stopping Methods 226
- Accel Time 1 227
- C1-01= 0 010.0Sec 227
- Output frequency 228
- Run command 228
- !DC Braking Stop 229
- !Coast to Stop with Timer 229
- Using the DC Injection Brake 230
- Using an Emergency Stop 231
- Commands 234
- During Acceleration Function) 237
- !Time Chart 238
- !Setting Precautions 238
- Deceleration Function) 239
- !Setting Example 240
- Frequency reference 243
- Terminal A1 input voltage 243
- Function) 247
- Limiting Minimum Frequency 248
- Improved Operating Efficiency 249
- Slip compensation limit 251
- E1-06: Base frequency 251
- Hunting-prevention Function 254
- Machine Protection 256
- C6-03 ≥ 10.0 kHz: K=3 257
- 5.0 kHz > C6-03: K=1 257
- 200-240 V, 22 kW 258
- 200-240 V, 30 to 75 kW 258
- " Detecting Motor Torque 262
- Function Contents (100%) 267
- Motor Overload Protection 268
- !Setting Motor Rated Current 269
- Error Code Details 272
- Continuing Operation 274
- Setting Precautions 275
- " Speed Search 276
- !Speed Search Selection 279
- !Estimated Speed Search 279
- ! Application Precautions 283
- Drive Protection 284
- Input Terminal Functions 286
- Ramp Hold) 288
- !Application Precautions 289
- !Precautions 290
- (FJOG/RJOG) 294
- (External Fault Function) 295
- Monitor Parameters 296
- ! Related Parameters 299
- Using a Sinking Input 300
- Individual Functions 301
- !Message Format 305
- !MODBUS Message Example 306
- !Data Tables 308
- Monitor Data 309
- !ENTER Command 311
- !Error Codes 312
- !Slave Not Responding 312
- S2 S3 S4 S5 S6 S7 313
- Using the Timer Function 314
- " Using PID Control 315
- !PID Control Methods 319
- !PID Input Methods 319
- !PID Adjustment Methods 320
- !PID Fine Adjustment Methods 320
- of 0.1%, taking the maximum 321
- !PID Control Block 322
- !PID Feedback Loss Detection 323
- !PID Sleep 323
- " Energy-saving 324
- Setting Motor Parameters 325
- ! E1-03 V/f Pattern Selection 330
- " Torque Control 337
- Monitor Function 339
- !Torque Reference Adjustment 343
- Motor speed 348
- The proportional gain is low 348
- " Droop Control Function 351
- " Zero-servo Function 352
- Digital Operator Functions 356
- !Disabling the STOP Key 358
- Enter Key 359
- " Copying Parameters 360
- ** Main Menu ** 361
- Programming 361
- READ IMPOSSIBLE 362
- READ DATA ERROR 362
- DATA ERROR 362
- Copy Function.) 363
- DATA VERIFYING 364
- Operation 365
- !Using PG Speed Control Card 370
- !Setting Number of PG Pulses 370
- !Detecting PG Open Circuit 372
- !Detecting Motor Overspeed 372
- Using Digital Output Cards 373
- F5-09 Set to 0 375
- F5-09 Set to 1 375
- F5-09 Set to 2 375
- DI-08 Reference Ranges 380
- Troubleshooting 382
- " Fault Detection 383
- " Alarm Detection 390
- (blinking) 393
- " Operation Errors 394
- Errors During Autotuning 396
- If Motor Deceleration is Slow 404
- " If the Motor Overheats 405
- Maintenance and 410
- Inspection 410
- " Outline of Maintenance 411
- " Daily Inspection 411
- " Periodic Inspection 411
- Periodic Maintenance of Parts 412
- Fan cover 413
- Maintenance and Inspection 414
- Specifications 416
- Standard Drive Specifications 417
- 4075 4090 4110 418
- 4132 4160 4185 4220 4300 418
- " Common Specifications 419
- * Under development 423
- Appendix 424
- Varispeed G7 Control Modes 425
- Load torque (%) 428
- Speed (Hz) 428
- Driving torque 428
- Regenerative torque 428
- Fig 10.1 429
- Fig 10.2 429
- Fig 10.3 429
- Fig 10.4 429
- " Selection 430
- " Installation 431
- " Settings 431
- " Handling 432
- Motor Application Precautions 433
- " CE Markings 435
- Input Fuses 436
- L1L2L3PE 438
- L1L2L3 T1 T3T2 439
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