INVT Goodrive350 Series Operation Manual page 6

Goodrive350 series high-performance multifunction VFD
P25--Expansion I/O card input functions ................................................................. 256
P26--Output functions of expansion I/O card ........................................................... 259
P27--Programmable expansion card functions ........................................................ 262
P28--Master/slave control functions ........................................................................ 265
P90--Tension control in speed mode ....................................................................... 268
P91--Tension control in torque mode ....................................................................... 272
P92--Customized tension control functions .............................................................. 275
P93--Tension control status viewing ........................................................................ 277
7 Troubleshooting ........................................................................................................................ 280
7.1 What this chapter contains ........................................................................................... 280
7.2 Indications of alarms and faults .................................................................................... 280
7.3 Fault reset .................................................................................................................... 280
7.4 Fault history ................................................................................................................. 280
7.5 VFD faults and solutions ............................................................................................... 280
7.5.1 Details of faults and solutions........................................................................... 280
7.5.2 Other state ...................................................................................................... 289
7.6 Analysis on common faults ........................................................................................... 289
7.6.1 Motor fails to work ........................................................................................... 289
7.6.2 Motor vibrates .................................................................................................. 290
7.6.3 Overvoltage ..................................................................................................... 291
7.6.4 Undervoltage ................................................................................................... 291
7.6.5 Unusual heating of motor ................................................................................. 292
7.6.6 VFD overheating .............................................................................................. 293
7.6.7 Motor stalls during ACC ................................................................................... 294
7.6.8 Overcurrent ..................................................................................................... 295
7.7 Countermeasures on common interference .................................................................. 296
7.7.1 Interference on meter switches and sensors .................................................... 296
7.7.2 Interference on communication ........................................................................ 297
7.7.3 Failure to stop and indicator shimmering due to motor cable coupling .............. 298
7.7.4 Leakage current and interference on RCD ....................................................... 298
7.7.5 Live device chassis .......................................................................................... 299
8 Maintenance and hardware fault diagnosis ................................................................................ 300
8.1 What this chapter contains ........................................................................................... 300
8.2 Periodical inspection .................................................................................................... 300
8.3 Cooling fan ................................................................................................................... 302
8.4 Capacitor ..................................................................................................................... 303
8.4.1 Capacitor reforming ......................................................................................... 303
8.4.2 Electrolytic capacitor replacement .................................................................... 304
8.5 Power cable ................................................................................................................. 304
9 Communication ......................................................................................................................... 306
9.1 What this chapter contains ........................................................................................... 306
v
Contents