Lenze 8200 Frequency inverters Manual de usuario Pagina 250
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Network of several drives
8200SHB0199
10-7
10.2.5 Protection in networks of several drives
You have the possibility of selecting a graded protection concept for network
operation. The damage risk depends on the type of protection. The following table
helps to analyse the risk.
Please note:
- The rating of the cable cross-section of the common DC-bus must be
appropriate for the sum of parallel mains supplies:
- The sum of the rated fuse currents is the rated value for the cross-section
of the busbars.
- Observe the local standards and regulations.
- On the motor side, the cable protection is supported by the current
limitation of the controller. Condition:
- The current limit set for the controller corresponds to the rated current of
the connected motor.
- For group drives, additional protection of the single drives is
required/recommended.
Definition: ”internal fault”
- Controllers:
- The fault is located between the connection point at the DC-bus and
inside the unit in front of the terminals U, V, W.
- Supply modules:
- The fault is located between the mains input (terminals L1, L2, L3) and the
farthest point of the DC-bus.
Protection by F1 ... F3
Protection of Cable protection
on the mains side
on the DC-bus
on the motor side
No unit protection
Possible faults One or more controllers with
- internal short circuit (+U
G
→ -U
G
)
- internal earth fault (+ U
G
→ PE/-U
G
→ PE)
- motor-side earth fault on phase W
Mains failure of a controller with
decentral supply.
Risk Several parallel controllers supply the fault location(s) via the
DC-bus. Thismayleadtooverloadof the intactcontroller, as the
faulty controller is not selectively activated on the DC-bus.
Possible damage with central and decentral supply
- destruction of the controller concerned
- destruction of the controllers still intact
- destruction of the supply unit
If a mains-side supply/input fails
because F1 ... F3 blows, the active
controller which is connected can be
overloaded.
Note The extent of destructions depends on the ratio ”DC-bus power of the whole system / rated power of the
controller concerned”.
Show/Hide Bookmarks
- = Global Drive 1
- Contents of the Manual 3
- 8200SHB0199ii 6
- 8200SHB0199iv 8
- Contents 10
- 8200SHB0199vi 10
- 8200SHB0199x 14
- 1.1 How to use this Manual 17
- 1.2 Scope of delivery 17
- 8200SHB01991-2 18
- 1.3 Legal regulations 19
- 8200SHB01991-4 20
- 8200SHB01991-6 22
- 8200SHB01991-8 24
- Directive 25
- 8200SHB01991-10 26
- 1.4.5 EC Machinery Directive 27
- 8200SHB01991-12 28
- EC Manufacturer’s Declaration 28
- Safety information 29
- Technical Data 33
- 8200SHB01993-4 36
- 8200SHB01993-24 56
- 3.7.1 Features 56
- 4 Installation 58
- 4.1.1 Important notes 58
- 8200SHB01994-2 59
- 8200SHB01994-6 63
- 4.1.2.5 Types 8221 to 8227 63
- 4.1.2.6 Types 8241 to 8246 64
- 8200SHB01994-10 67
- (”push-through technique”) 67
- 4.1.4.1 Types 8215 to 8218 68
- 8200SHB01994-12 69
- 4.1.4.2 Types 8221 to 8227 69
- 4.1.4.3 Types 8241 to 8246 70
- 8200SHB01994-14 71
- 4.1.5.1 General 71
- 4.1.5.2 Demands on the cooler 72
- 8200SHB01994-16 73
- 4.1.5.4 Assembly preparations 74
- 8200SHB01994-18 75
- 8200SHB01994-20 77
- 8200SHB01994-22 79
- 8200SHB01994-24 81
- 4.2 Electrical installation 82
- 4.2.1 Operator’s safety 82
- 8200SHB01994-26 83
- 4.2.3 Motor protection 83
- 8200SHB01994-30 87
- 8200SHB01994-32 89
- 8200SHB01994-34 91
- 4.2.7.4 Connection plan 820X 92
- 8200SHB01994-36 93
- 4.2.7.5 Connection plan 821X 93
- 8200SHB01994-40 97
- 4.2.8.3 Connection diagrams 98
- 8200SHB01994-42 99
- Installation 100
- 8200SHB0199 100
- 8200SHB01994-44 101
- 8200SHB01994-46 103
- Edition of: 01/1999 105
- 5 Commissioning 106
- Commissioning 106
- 8200SHB01995-16 121
- 8200SHB01995-18 123
- 8200SHB01995-20 125
- 8200SHB01995-22 127
- 8200SHB01995-24 129
- 8200SHB01995-26 131
- 5.5.4 Air conditioning system 131
- 8200SHB01995-28 133
- During operation 134
- 6 During operation 134
- 6.1 Operating information 134
- 6.1.1 General 134
- 8200SHB01996-2 135
- 6.1.2 822X/824X 135
- 6.1.3 8218-V003 135
- Configuration 138
- 7 Configuration 138
- 8200SHB01997-2 139
- 7.1 8201BB operating module 139
- 8200SHB01997-4 141
- 7.2.1 Operating level 141
- 7.2.2 Code level 141
- 7.2.3 Parameter level 142
- 8200SHB01997-6 143
- 8200SHB01997-8 145
- 7.4 Operating functions 146
- 7.4.1 Operating mode 146
- 8200SHB01997-10 147
- 8200SHB01997-12 149
- 8200SHB01997-14 151
- 8200SHB01997-20 157
- 8200SHB01997-22 159
- 7.5.6 V/f characteristic 159
- 7.5.6.1 V/f-rated frequency f 159
- 8200SHB01997-26 163
- 7.5.7 Configuration 163
- 7.5.8 Motor data detection 164
- 7.5.9.2 Chopper frequency 166
- 8200SHB01997-30 167
- 7.5.9.3 Oscillation damping 168
- 8200SHB01997-32 169
- 7.5.9.5 Skip frequencies 170
- 8200SHB01997-34 171
- 8200SHB01997-36 173
- 7.5.10.3 Frequency precontrol 176
- 8200SHB01997-40 177
- 7.5.11 Setpoint input 177
- 8200SHB01997-42 179
- 7.5.11.6 Setpoint sum 184
- 8200SHB01997-48 185
- 7.5.12 Controller enable RFR 185
- 8200SHB01997-50 187
- 8200SHB01997-52 189
- 8200SHB01997-56 193
- 8200SHB01997-58 195
- 7.5.14.7 TRIP set 195
- 8200SHB01997-60 197
- 8200SHB01997-64 201
- 8200SHB01997-72 209
- 7.7.3.2 PTC input 209
- 8200SHB01997-74 211
- 8200SHB01997-80 217
- 8200SHB01997-82 219
- 8200SHB01997-86 223
- 8200SHB01997-90 227
- 8200SHB01997-94 231
- 8200SHB01997-96 233
- 8.1 Troubleshooting 236
- 8.3 Fault messages 237
- 8200SHB01998-4 239
- 8.4 Reset of fault messages 239
- Maintenance 240
- 9 Maintenance 240
- 9.1 Maintenance services 240
- 8200SHB01999-2 241
- 9.2 Service addresses 241
- Network of several drives 244
- 10 Network of several drives 244
- 10.1 Function 244
- 10.3.1 Conditions 252
- 10.3 Selection basics 252
- 8200SHB019910-18 261
- Instructions 262
- Application of brake units 264
- 11 Application of brake units 264
- 8200SHB019911-2 265
- Automation 267
- 12 Automation 267
- Accessories 270
- 13 Accessories (Survey) 270
- 13.2 Software 270
- 8200SHB019913-2 271
- 13.3.1 Types 820X 271
- 13.3.2 Types 821X 272
- 8200SHB019913-4 273
- 13.3.3 Types 822X 273
- 13.3.4 Types 824X 274
- 8200SHB019913-6 275
- Selection help 278
- 14 Selection help 278
- 8200SHB019914-2 279
- Application examples 280
- 15 Application examples 280
- 8200SHB019915-2 281
- Show/Hide Bookmarks 285
- 8200SHB019915-8 287
- 15.4 Air conditioning system 287
- 8200SHB019915-10 289
- Signal flow charts 292
- 16 Signal-flow charts 292
- 16.1.1 Control structure 293
- 16.1.2 Inverter control 294
- 16.1.3 Monitorings 294
- Glossary 302
- 17 Glossary 302
- 8200SHB019917-2 303
- Table of keyw ords 304
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