YASKAWA AC Drive-A1000 Technical Manual page 10

Table of Contents
Common Problems.......................................................................................................................... 336
Cannot Change Parameter Settings ............................................................................................... 336
Motor Does Not Rotate Properly after Pressing RUN Button or after Entering External Run
Command ...................................................................................................................................... 337
Motor is Too Hot.............................................................................................................................. 338
Drive Does Not Allow Selection the Desired Auto-Tuning Mode..................................................... 339
oPE02 Error Occurs When Lowering the Motor Rated Current Setting .......................................... 339
Motor Stalls during Acceleration or Acceleration Time is Too Long................................................ 339
Drive Frequency Reference Differs from the Controller Frequency Reference Command ............. 340
Excessive Motor Oscillation and Erratic Rotation............................................................................ 340
Deceleration Takes Longer Than Expected with Dynamic Braking Enabled .................................. 340
Noise From Drive or Output Lines When the Drive is Powered On ................................................ 341
Ground Fault Circuit Interrupter (GFCI) Trips During Run .............................................................. 341
Connected Machinery Vibrates When Motor Rotates ..................................................................... 341
PID Output Fault.............................................................................................................................. 342
Insufficient Starting Torque ............................................................................................................. 342
Motor Rotates After the Drive Output is Shut Off (Motor Rotates During DC Injection Braking)..... 342
Output Frequency is not as High as Frequency Reference ............................................................ 342
Buzzing Sound from Motor at 2 kHz................................................................................................ 342
Unstable Motor Speed when Using PM .......................................................................................... 343
Motor Does Not Restart after Power Loss....................................................................................... 343
7. PERIODIC INSPECTION & MAINTENANCE ...................................................... 345
7.1 Section Safety....................................................................................................................346
7.2 Inspection ..........................................................................................................................348
Recommended Daily Inspection...................................................................................................... 348
Recommended Periodic Inspection................................................................................................. 349
7.3 Periodic Maintenance .......................................................................................................351
Replacement Parts.......................................................................................................................... 351
7.4 Drive Cooling Fans............................................................................................................353
Number of Cooling Fans ................................................................................................................. 353
Cooling Fan Component Names ..................................................................................................... 353
Cooling Fan Replacement............................................................................................................... 353
7.5 Drive Replacement ............................................................................................................356
Serviceable Parts ............................................................................................................................ 356
Terminal Board................................................................................................................................ 356
Replacing the Drive ......................................................................................................................... 356
8. PERIPHERAL DEVICES & OPTIONS ................................................................. 359
8.1 Section Safety....................................................................................................................360
8.2 Drive Options and Peripheral Devices ............................................................................361
8.3 Connecting Peripheral Devices .......................................................................................363
8.4 Option Card Installation....................................................................................................364
Installing Option Cards .................................................................................................................... 364
Installation Procedure...................................................................................................................... 364
8.5 Installing Peripheral Devices ...........................................................................................366
Dynamic Braking Options................................................................................................................ 366
Installing a Molded Case Circuit Breaker (MCCB) and Earth Leakage Circuit Breaker (ELCB) ..... 367
Installing a Ground Fault Circuit Interrupter (GFCI) ........................................................................ 367
Installing a Magnetic Contactor at the Power Supply Side.............................................................. 368
10 YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive - A1000 Technical Manual