If the Drive Still has Power After a Fault Occurs ............................................................................. 256
Viewing Fault Trace Data After Fault .............................................................................................. 256
Fault Reset Methods ....................................................................................................................... 257
6.9 Troubleshooting without Fault Display...........................................................................258
Common Problems.......................................................................................................................... 258
Cannot Change Parameter Settings ............................................................................................... 258
Motor Does Not Rotate Properly after Pressing AUTO Button or after Entering External Run
Command ...................................................................................................................................... 259
Motor is Too Hot.............................................................................................................................. 260
oPE02 Error Occurs When Lowering the Motor Rated Current Setting .......................................... 261
Motor Stalls during Acceleration or Acceleration Time is Too Long................................................ 261
Drive Frequency Reference Differs from the Controller Frequency Reference Command............. 261
Excessive Motor Oscillation and Erratic Rotation............................................................................ 262
Deceleration Takes Longer Than Expected.................................................................................... 262
Noise From Drive or Motor Cables When the Drive is Powered On ............................................... 262
Ground Fault Circuit Interrupter (GFCI) Trips During Run .............................................................. 262
Connected Machinery Vibrates When Motor Rotates ..................................................................... 262
PI Output Fault ................................................................................................................................ 263
Motor Rotates after the Drive Output is Shut Off (Motor Rotates During DC Injection Braking) ..... 263
Output Frequency is Not as High as Frequency Reference............................................................ 263
Sound from Motor............................................................................................................................ 263
Motor Does Not Restart after Power Loss....................................................................................... 264
7. PERIODIC INSPECTION & MAINTENANCE ...................................................... 265
7.1 Section Safety....................................................................................................................266
7.2 Inspection ..........................................................................................................................268
Recommended Daily Inspection...................................................................................................... 268
Recommended Periodic Inspection................................................................................................. 269
7.3 Periodic Maintenance .......................................................................................................271
Replacement Parts.......................................................................................................................... 271
7.4 HOA Keypad Battery Replacement..................................................................................273
Real-Time Clock Adjustment........................................................................................................... 273
7.5 Drive Cooling Fans............................................................................................................275
Number of Cooling Fans ................................................................................................................. 275
Drive Cooling Fan Component Names............................................................................................ 276
Cooling Fan Replacement: 2A0011 to 2A0059, 4A0005 to 4A0040, and 4A0052ooB................. 277
Cooling Fan Replacement: 2A0075 to 2A0114, 4A0052ooA, and 4A0065 to 4A0096................. 281
Cooling Fan Replacement: 4A0124 ................................................................................................ 286
Cooling Fan Replacement: 2A0143 to 2A0273, 4A0156 to 4A0240 ............................................... 292
Cooling Fan Replacement: 2A0343 and 2A0396............................................................................ 294
Cooling Fan Replacement: 4A0302 ................................................................................................ 296
A. SPECIFICATIONS ................................................................................................ 299
A.1 Power Ratings ...................................................................................................................300
Three-Phase 208 Vac Models Z1B1D002 to D046......................................................................... 300
Three-Phase 208 Vac Models Z1B1D059 to D273......................................................................... 301
Three-Phase 480 Vac Models Z1B1B001 to B034 ......................................................................... 302
Three-Phase 480 Vac Models Z1B1B040 to B302 ......................................................................... 303
A.2 Drive Specifications ..........................................................................................................304
A.3 Drive Watt Loss Data ........................................................................................................306
Table of Contents
YASKAWA ELECTRIC SIEP YAIZ1B 01E YASKAWA AC Drive – Z1000 Bypass Technical Manual
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