Filter
Top Products
V
4.20.4 Current average value monitor signal (Pr.555 to Pr.557) .......................................................... 249
4.20.5 Free parameter (Pr.888, Pr.889) ............................................................................................... 251
4.20.6 Initiating a fault (Pr.997)............................................................................................................. 252
4.20.7 Batch setting Mitsubishi HMI (GOT) connection parameters (Pr. 999)...................................... 253
4.21 Setting from the parameter unit and operation panel .................. 255
4.21.1 RUN key rotation direction selection (Pr.40).............................................................................. 255
4.21.2 Setting-dial potentiometer mode/key lock operation selection (Pr.161)..................................... 256
4.21.3 Magnitude of speed change setting (Pr.295)............................................................................. 259
4.21.4 Buzzer control (Pr.990).............................................................................................................. 260
4.21.5 PU contrast adjustment (Pr.991) ............................................................................................... 260
4.22 Parameter clear/ All parameter clear............................................ 261
4.23 Initial value change list ................................................................. 262
4.24 Check and clear of the faults history............................................ 263
5 TROUBLESHOOTING 265
5.1 Reset method of protective function ............................................. 266
5.2 List of fault or alarm indications .................................................... 267
5.3 Causes and corrective actions....................................................... 268
5.4 Correspondences between digital and actual characters ............ 279
5.5 Check first when you have a trouble.............................................. 280
5.5.1 Motor does not start.................................................................................................................... 280
5.5.2 Motor or machine is making abnormal acoustic noise................................................................ 281
5.5.3 Motor generates heat abnormally............................................................................................... 282
5.5.4 Motor rotates in the opposite direction........................................................................................ 282
5.5.5 Speed greatly differs from the setting......................................................................................... 282
5.5.6 Acceleration/deceleration is not smooth..................................................................................... 283
5.5.7 Speed varies during operation.................................................................................................... 283
5.5.8 Operation mode is not changed properly.................................................................................... 284
5.5.9 Operation panel display is not operating .................................................................................... 284
5.5.10 Motor current is too large............................................................................................................ 284
5.5.11 Speed does not accelerate......................................................................................................... 285
5.5.12 Unable to write parameter setting............................................................................................... 285
6 PRECAUTIONS FOR MAINTENANCE AND INSPECTION 287
6.1 Inspection items ............................................................................. 288
6.1.1 Daily inspection........................................................................................................................... 288
6.1.2 Periodic inspection...................................................................................................................... 288
6.1.3 Daily and periodic inspection...................................................................................................... 289