Yaskawa F7 Drive User Manual User Manual Page 228
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Communications D - 9
Loopback Test (08H)
The loopback test returns the command message directly as the response message without changing the contents to check the
communications between the master and slave. Set user-defined test code and data values.
The following table shows a message example when performing a loopback test with the slave 1 Drive.
Fig D.8 Function Code 08H Message Example
Write In Several Holding Registers (10H)
Write the specified data to the registers from the specified addresses. The written data must be consecutive, starting from the
specified address in the command message: Higher 8 bits, then lower 8 bits, in storage register address order. The following
table shows an example of a message when a forward run command and a speed command of 60.0Hz has been set in slave 1 by
the PLC.
Fig D.9 Function Code 10H Message Example
Command Message
Response Message
(During Normal Operation)
Response Message
(During Error)
Slave address 01H Slave address 01H Slave address 01H
Function code 08H Function code 08H Function code 88H
Test Code
Higher 00H
Test Code
Higher 00H Error Code 01H
Lower 00H Lower 00H
CRC-16
Higher 86H
Data
Higher A5H
Data
Higher A5H Lower 50H
Lower 37H Lower 37H
CRC-16
Higher DAH
CRC-16
Higher DAH
Lower 8DH Lower 8DH
IMPORTANT
Set the number of data specified using command messages as quantity of specified messages x 2. Handle
response messages in the same way.
Command Message
Response Message
(During Normal Operation)
Response Message
(During Error)
Slave Address 01H Slave Address 01H Slave Address 01H
Function Code 10H Function Code 10H Function Code 90H
Start
Address
Higher 00H
Start
Address
Higher 00H Error code 02H
Lower 01H Lower 01H
CRC-16
Higher CDH
Quantity
Higher 00H
Quantity
Higher 00H Lower C1H
Lower 02H Lower 02H
No. of data 04H
CRC-16
Higher 10H
Lead data
Higher 00H Lower 08H
Lower 01H
Next data
Higher 02H
Lower 58H * No. of data = 2 x (quantity)
CRC-16
Higher 63H
Lower 39H
- F7 Drive 1
- User Manual 1
- Warnings and Cautions 2
- Intended Use 3
- Introduction 4
- Drive Output Specifications 5
- Table of Contents 8
- Chapter 1 12
- Physical Installation 12
- Physical Installation 1 - 2 13
- Confirmations upon Delivery 14
- Drive Model Numbers 15
- Component Names 16
- Physical Installation 1 - 6 17
- Physical Installation 1 - 7 18
- Physical Installation 1 - 8 19
- Physical Installation 1 - 9 20
- Physical Installation 1 - 10 21
- Installation Site 22
- Physical Installation 1 - 12 23
- Removing the Terminal Cover 24
- Physical Installation 1 - 14 25
- Physical Installation 1 - 15 26
- Physical Installation 1 - 16 27
- Chapter 2 28
- Electrical Installation 28
- Terminal Block Configuration 29
- Wiring Main Circuit Terminals 30
- Wire Size * 35
- Terminal Screw 35
- Ground Wiring 38
- Dynamic Braking Connections 39
- SP and S3 is programmed as 43
- External Fault 43
- Terminal Connections 46
- Control Wiring 47
- DIP Switch S1 and Jumper CN15 49
- Sinking/Sourcing Mode 50
- Control Circuit Wire Sizes 51
- Wiring Checks 51
- Field Wiring Diagram 52
- Introduction 53
- Cable Installation 53
- Fig 2.15 EMC Filter Layout 54
- Motor Cable 54
- Max. Length: 82 feet 54
- Recommended EMC Filters 55
- Installation 58
- Circuit 59
- Protection 59
- Wiring the PG-B2 61
- Wiring the PG-D2 63
- Drive 66
- Wiring Terminal Blocks 67
- PG-A2/PG-B2 68
- PG-D2/PG-X2/PG-W2 69
- Chapter 3 70
- Digital Operator 70
- Digital Operator Display 71
- Digital Operator Keys 72
- Drive Mode Indicators 73
- Run Indicator 74
- Stop Indicator 74
- Drive Main Menus 75
- Main Menu Structure 76
- Operation Menu (-DRIVE-) 77
- Digital Operator 3 - 9 78
- Digital Operator 3 - 10 79
- Quick Setting Menu (-QUICK-) 80
- Programming Menu (-ADV-) 81
- Auto-Tuning Menu (-A.TUNE-) 82
- Digital Operator 3 - 14 83
- Digital Operator 3 - 15 84
- Digital Operator 3 - 16 85
- Chapter 4 86
- Start-Up 86
- Drive Start-Up Preparation 87
- Start-Up 4 - 3 88
- Start-Up 4 - 4 89
- Drive Start-Up Procedures 90
- V/F Start-Up 91
- V/F w/ PG Start-Up 92
- Open Loop Vector Start-Up 93
- Flux Vector Start-Up 94
- Auto-Tuning 95
- Start-Up 4 - 11 96
- Quick Setting Parameters 97
- Start-Up 4 - 13 98
- Start-Up 4 - 14 99
- Trial Run 100
- Start-Up 4 - 16 101
- Chapter 5 102
- Basic Programming 102
- Control Method 103
- Speed Command Source 104
- Run Command Source 105
- Stopping Method 106
- Basic Programming 5 - 6 107
- Basic Programming 5 - 7 108
- Output Frequency 109
- Carrier Frequency 110
- Basic Programming 5 - 10 111
- Preset Reference 112
- Input Voltage Setting 113
- V/F Pattern 113
- Basic Programming 5 - 13 114
- E1-09 E1-07 116
- Basic Programming 5 - 16 117
- Basic Programming 5 - 17 118
- Basic Programming 5 - 18 119
- Basic Programming 5 - 19 120
- Motor Setup 121
- PG Option 121
- Output Function Level (%) 122
- 10V x 150% 122
- 0Disabled 123
- default) 123
- 3 Vector Motor ( 123
- Stall Prevention 124
- Basic Programming 5 - 24 125
- Chapter 6 126
- Fault Detection 127
- <3021> 129
- Alarm Detection 135
- Auto-Tuning Faults 142
- Troubleshooting 145
- Vector Control Method 147
- If Motor Deceleration is Slow 148
- If the Motor Overheats 149
- Check Procedure 153
- Fig 6.1 Date Stamp Location 156
- Chapter 7 158
- Maintenance 158
- Periodic Inspection 159
- Preventive Maintenance 160
- Periodic Maintenance of Parts 161
- Maintenance 7 - 5 162
- Connector 162
- Maintenance 7 - 6 163
- Maintenance 7 - 7 164
- Maintenance 7 - 8 165
- Appendix A 166
- Parameters 166
- Parameters A - 2 167
- F7 Parameter List 168
- Parameters A - 4 169
- Parameters A - 5 170
- Parameters A - 6 171
- Parameters A - 7 172
- Parameters A - 8 173
- Parameters A - 9 174
- Parameters A - 10 175
- Parameters A - 11 176
- Parameters A - 12 177
- Parameters A - 13 178
- Parameters A - 14 179
- Parameters A - 15 180
- Parameters A - 16 181
- Parameters A - 17 182
- Parameters A - 18 183
- Parameters A - 19 184
- Parameters A - 20 185
- Parameters A - 21 186
- Parameters A - 22 187
- Parameters A - 23 188
- Parameters A - 24 189
- Parameters A - 25 190
- Parameters A - 26 191
- Parameters A - 27 192
- Parameters A - 28 193
- Parameters A - 29 194
- Parameters A - 30 195
- Parameters A - 31 196
- Parameters A - 32 197
- Parameters A - 33 198
- Parameters A - 34 199
- Parameters A - 35 200
- Parameters A - 36 201
- Parameters A - 37 202
- F7 Monitor List 203
- 0 0 0 0 0 0 0 0 204
- F7 Fault Trace List 206
- F7 Fault History List 206
- Parameters A - 42 207
- Appendix B 208
- Capacity Related Parameters 208
- Drive Capacity Selection 209
- Appendix C 214
- Specifications 214
- Standard Drive Specifications 215
- 480Vac 216
- Common Specifications 217
- Specifications C - 5 218
- Specifications C - 6 219
- Appendix D 220
- Communications 220
- Using Modbus Communication 221
- Communications D - 3 222
- Communications D - 4 223
- 08H Loopback Test 8 8 8 8 224
- Communications D - 6 225
- Communications D - 7 226
- Modbus Function Code Details 227
- Loopback Test (08H) 228
- Modbus Data Tables 229
- Communications D - 11 230
- Communications D - 12 231
- Communications D - 13 232
- Communications D - 14 233
- Communications D - 15 234
- Communications D - 16 235
- Communications D - 17 236
- Modbus Self-Diagnosis 237
- Appendix E 238
- Peripheral Devices 238
- Peripheral Devices E - 2 239
- Peripheral Devices E - 3 240
- Peripheral Devices E - 4 241
- Peripheral Devices E - 5 242
- Appendix F 244
- Spare Parts 244
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