Omron VARISPEED E7 User Manual page 6

Troubleshooting .........................................................................................7-12
If Parameters Cannot Be Set........................................................................................ 7-12
If the Motor Does Not Operate ..................................................................................... 7-13
If the Direction of the Motor Rotation is Reversed ........................................................ 7-14
If the Motor Does Not Put Out Torque or If Acceleration is Slow.................................. 7-14
If the Motor Operates at Higher Speed than the Frequency Reference ....................... 7-14
If Motor Deceleration is Slow ........................................................................................ 7-15
If the Motor Overheats .................................................................................................. 7-15
If peripheral devices like PLC's or other are influenced
by the starting or running inverter ................................................................................ 7-16
If the Earth Leakage Breaker Operates when a RUN Command is Input .................... 7-16
If There is Mechanical Oscillation ................................................................................. 7-16
If the Motor Rotates Even When Inverter Output is Stopped........................................ 7-17
If OV (Overvoltage) or OC (Overcurrent) is Detected
When a Fan is Started, or a Fan Stalls......................................................................... 7-17
If Output Frequency Does Not Rise to Frequency Reference ...................................... 7-17
8 Maintenance and Inspection.................................................. 8-1
Maintenance and Inspection ........................................................................8-2
Outline of Maintenance................................................................................................... 8-2
Daily Inspection .............................................................................................................. 8-2
Periodic Inspection ......................................................................................................... 8-2
Periodic Maintenance of Parts........................................................................................ 8-3
Cooling Fan Replacement Outline ................................................................................. 8-4
Removing and Mounting the Control Circuit Terminal Card .......................................... 8-6
9 Specifications ......................................................................... 9-1
Standard Inverter Specifications ..................................................................9-2
Specifications by Model .................................................................................................. 9-2
Common Specifications ................................................................................................. 9-4
10 Appendix ............................................................................... 10-1
Inverter Application Precautions ................................................................10-2
Selection ....................................................................................................................... 10-2
Installation .................................................................................................................... 10-3
Settings......................................................................................................................... 10-3
Handling ....................................................................................................................... 10-4
Motor Application Precautions ...................................................................10-5
Using the Inverter for an Existing Standard Motor........................................................ 10-5
Using the Inverter for Special Motors ........................................................................... 10-5
Power Transmission Mechanism (Speed Reducers, Belts and Chains) ...................... 10-6
User Parameters .......................................................................................10-7
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