V
7 Troubleshooting ..................................................................... 7-1
Protective and Diagnostic Functions ...........................................................7-2
îš‹
Fault Detection ...............................................................................................................7-2
îš‹ Alarm Detection .............................................................................................................7-8
îš‹ Operator Programming Errors .....................................................................................7-11
îš‹ Autotuning Faults ........................................................................................................7-13
îš‹ Digital Operator Copy Function Faults .........................................................................7-13
Troubleshooting .........................................................................................7-15
îš‹
If Parameters Cannot Be Set .......................................................................................7-15
îš‹ If the Motor Does Not Operate .....................................................................................7-16
îš‹ If the Direction of the Motor Rotation is Reversed .......................................................7-17
îš‹ If the Motor Does Not Put Out Torque or If Acceleration is Slow .................................7-17
îš‹ If the Motor Operates at Higher Speed than the Frequency Reference ......................7-17
îš‹ If Motor Deceleration is Slow .......................................................................................7-18
îš‹ If the Motor Overheats .................................................................................................7-18
îš‹ If peripheral devices like PLCs or other are influenced
by the starting or running inverter 7-................................................................................19
îš‹ If the Earth Leakage Breaker Operates when a RUN Command is Input ...................7-19
îš‹ If There is Mechanical Oscillation ................................................................................7-19
îš‹ If the Motor Rotates Even When Inverter Output is Stopped .......................................7-20
îš‹ If OV (Overvoltage) or OC (Overcurrent) is Detected
When a Fan is Started, or a Fan Stalls ........................................................................7-20
îš‹ If Output Frequency Does Not Rise to Frequency Reference .....................................7-20
8 Maintenance and Inspection.................................................. 8-1
Maintenance and Inspection ........................................................................8-2
îš‹
Periodic Inspection ........................................................................................................8-2
îš‹ Periodic Maintenance of Parts .......................................................................................8-4
îš‹ Cooling Fan Replacement Outline .................................................................................8-5
îš‹ Removing and Mounting the Control Circuit Terminal Card ..........................................8-7
9 Specifications ......................................................................... 9-1
Standard Inverter Specifications ..................................................................9-2
îš‹
Specifications by Model .................................................................................................9-2
îš‹ Common Specifications .................................................................................................9-5
10 Appendix ............................................................................... 10-1
Inverter Application Precautions ................................................................10-2
îš‹
Selection ......................................................................................................................10-2
îš‹ Installation ....................................................................................................................10-2
îš‹ Settings ........................................................................................................................10-3
îš‹ Handling .......................................................................................................................10-3
Motor Application Precautions ...................................................................10-4
îš‹
Using the Inverter for an Existing Standard Motor .......................................................10-4
îš‹ Using the Inverter for Special Motors ..........................................................................10-5
îš‹ Power Transmission Mechanism (Speed Reducers, Belts and Chains) .....................10-5
User Parameters .......................................................................................10-6
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