xv
îš‹ Confirming Startup Current and Reducing Carrier Frequency .................................... 6-179
îš‹ Overvoltage Inhibit Function.......................................................................................6-180
Current Alarm Function ............................................................................6-181
Peak Hold Current Monitoring Function ...................................................6-182
Maintenance Timer Display Function .......................................................6-183
îš‹
Settings Required to Use Maintenance Timer Display Function.................................6-183
îš‹ Settings Required After Replacement of Cooling Fan or Electrolytic Capacitor .........6-184
7 Troubleshooting ..................................................................... 7-1
Protective and Diagnostic Functions ............................................................7-2
îš‹
Fault Detection................................................................................................................7-2
îš‹ Alarm Detection ............................................................................................................7-15
îš‹ Operation Errors ...........................................................................................................7-19
îš‹ Errors During Autotuning .............................................................................................7-21
îš‹ Errors when Using the Digital Operator Copy Function................................................7-22
Troubleshooting ..........................................................................................7-24
îš‹
If Constant Constants Cannot Be Set ...........................................................................7-24
îš‹ If the Motor Does Not Operate......................................................................................7-25
îš‹ If the Direction of the Motor Rotation is Reversed ........................................................ 7-28
îš‹ If the Motor Does Not Put Out Torque or If Acceleration is Slow ..................................7-28
îš‹ If the Motor Operates Higher Than the Reference .......................................................7-28
îš‹ If the Slip Compensation Function Has Low Speed Precision......................................7-29
îš‹ If There is Low Speed Control Accuracy at High-speed Rotation in Open-loop
Vector Control Method..................................................................................................7-29
îš‹ If Motor Deceleration is Slow ........................................................................................7-29
îš‹ If the Motor Overheats ..................................................................................................7-30
îš‹ If There is Noise When the Inverter is Started or From an AM Radio ..........................7-31
îš‹ If the Ground Fault Interrupter Operates When the Inverter is Run..............................7-31
îš‹ If There is Mechanical Oscillation .................................................................................7-31
îš‹ If the Torque Generated for the Motor is Insufficient (Insufficient Power) .....................7-33
îš‹ If the Torque Reference (U1-09) at Low Speeds in Open-loop Vector 2 Control is
Large Compared to That at Medium and High Speeds ................................................7-33
îš‹ If Shock Occurs Near the Speed Estimator Switching Frequency in Open-loop
Vector 2 Control ............................................................................................................7-33
îš‹ If Torque Ripple Occurs at Very Low Speeds in Open-loop Vector 2 Control ............... 7-34
îš‹ If the Motor Rotates Even When Inverter Output is Stopped........................................7-34
îš‹ If OV is Detected When the Fan is Started, or Fan Stalls ............................................. 7-34
îš‹ If Output Frequency Does Not Rise to Frequency Reference ......................................7-34
îš‹ Acoustic Noise From the Motor ....................................................................................7-35
8 Maintenance and Inspection.................................................. 8-1
Maintenance and Inspection.........................................................................8-2
îš‹
Outline of Warranty .........................................................................................................8-2
îš‹ Daily Inspection ..............................................................................................................8-2
To Next Page
Loading...
Need help?
General