Yaskawa Z1000U HVAC Matrix Bypass - Manual (Page 39)

Auto-Tuning Codes, Causes, and Possible Solutions..................................................................... 262
6.8 Diagnosing and Resetting Faults.....................................................................................264
Fault Occurs Simultaneously with Power Loss ............................................................................... 264
If the Drive Still has Power After a Fault Occurs ............................................................................. 264
Viewing Fault Trace Data After Fault .............................................................................................. 264
Fault Reset Methods ....................................................................................................................... 264
6.9 Troubleshooting without Fault Display...........................................................................266
Common Problems.......................................................................................................................... 266
Cannot Change Parameter Settings ............................................................................................... 266
Motor Does Not Rotate Properly after Pressing AUTO Button or after Entering External Run
Command ...................................................................................................................................... 267
Motor is Too Hot.............................................................................................................................. 269
oPE02 Error Occurs When Lowering the Motor Rated Current Setting .......................................... 270
Motor Stalls during Acceleration or Acceleration Time is Too Long................................................ 270
Drive Frequency Reference Differs from the Controller Frequency Reference Command ............. 270
Excessive Motor Oscillation and Erratic Rotation............................................................................ 271
Deceleration Takes Longer than Expected ..................................................................................... 271
Noise From Drive or Motor Cables When the Drive is Powered On ............................................... 271
Ground Fault Circuit Interrupter (GFCI) Trips During Run .............................................................. 271
Connected Machinery Vibrates When Motor Rotates ..................................................................... 271
PID Output Fault.............................................................................................................................. 272
Motor Rotates after the Drive Output is Shut Off (Motor Rotates During DC Injection Braking) ..... 272
Output Frequency is Not as High as Frequency Reference............................................................ 272
Sound from Motor............................................................................................................................ 273
Motor Does Not Restart after Power Loss....................................................................................... 273
The Safety Controller Does Not Recognize Safe Disable Monitor Output Signals (Terminals DM
+ and DM-) ..................................................................................................................................... 273
7. PERIODIC INSPECTION & MAINTENANCE....................................................... 275
7.1 Section Safety....................................................................................................................276
7.2 Inspection ..........................................................................................................................278
Recommended Daily Inspection...................................................................................................... 278
Recommended Periodic Inspection................................................................................................. 279
7.3 Periodic Maintenance .......................................................................................................281
Replacement Parts.......................................................................................................................... 281
7.4 HOA Keypad Battery Replacement..................................................................................283
Real-Time Clock Adjustment........................................................................................................... 283
7.5 Drive Cooling Fans............................................................................................................285
Number of Cooling Fans ................................................................................................................. 285
Drive Cooling Fan Component Names............................................................................................ 285
Cooling Fan Replacement: 2o0028 to 2o0130 and 4o0011 to 4o0124 ...................................... 287
Cooling Fan Replacement: 2o0154, 2o0192, 4o0156, and 4o0180 ........................................... 289
Cooling Fan Replacement: 2o0248 and 4o0240 to 4o0414 ........................................................ 293
Installing the Cooling Fan................................................................................................................ 295
A. SPECIFICATIONS ................................................................................................ 299
A.1 Power Ratings ...................................................................................................................300
Three-Phase 208 Vac Models D024 to D211.................................................................................. 300
Three-Phase 480 Vac Models B011 to B077 .................................................................................. 301
Three-Phase 480 Vac Models B096 to B414 .................................................................................. 302
Table of Contents
YASKAWA SIEP YAIZ1D 01A Z1000U HVAC MATRIX Drive Bypass Technical Manual 39