xvi
If the Motor Overheats.................................................................................................. 7-32
If There is Noise When the Inverter is Started or From an AM Radio .......................... 7-33
If the Ground Fault Interrupter Operates When the Inverter is Run ............................. 7-33
If There is Mechanical Oscillation................................................................................. 7-33
If the Torque Generated for the Motor is Insufficient (Insufficient Power)..................... 7-35
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 ................................................ 7-35
If Shock Occurs Near the Speed Estimator Switching Frequency in
Open-loop Vector 2 Control (PRG 102 only) ............................................................. 7-35
If Torque Ripple Occurs at Very Low Speeds in Open-loop Vector 2 Control
(PRG 102 only) ......................................................................................................... 7-36
If the Motor Rotates Even When Inverter Output is Stopped ....................................... 7-36
If OV is Detected When the Fan is Started, or Fan Stalls............................................. 7-36
If Output Frequency Does Not Rise to Frequency Reference...................................... 7-36
Acoustic Noise From the Motor .................................................................................... 7-37
If Motor Overload (OL1) is Detected Even Though the Current is
below the Motor Rated Current .................................................................................... 7-37
8 Maintenance and Inspection ..................................................8-1
Maintenance and Inspection ........................................................................ 8-2
Outline of Warranty......................................................................................................... 8-2
Daily Inspection .............................................................................................................. 8-2
Periodic Inspection ......................................................................................................... 8-2
Storage Guidelines ......................................................................................................... 8-3
Periodic Maintenance of Parts ....................................................................................... 8-4
Procedure for Adjusting Constants after Replacement of Control Board ....................... 8-4
Types and Number of Cooling Fans Used in the Drive .................................................. 8-7
Cooling Fan Replacement Outline ................................................................................. 8-8
Circulation Fan Replacement Outline........................................................................... 8-18
Removing and Mounting the Control Circuit Terminal Board ....................................... 8-24
9 Specifications ..........................................................................9-1
Standard Inverter Specifications................................................................... 9-2
Specifications by Model.................................................................................................. 9-2
Common Specifications.................................................................................................. 9-4
Specifications of Options and Peripheral Devices........................................ 9-6
10 Appendix ................................................................................10-1
Varispeed G7 Control Methods .................................................................. 10-2
Control Methods and Features..................................................................................... 10-2
Control Methods and Applications................................................................................ 10-4
TOE-S616-60.1.book xvi ページ ２０１７年８月４日 金曜日 午後３時４１分
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