xv
Low Speed Control Accuracy at High-Speed Rotation in Open Loop Vector Control
Method..........................................................................................................................7-21
Motor Deceleration is Too Slow ....................................................................................7-21
Motor Overheat.............................................................................................................7-22
Noise is Produced from an AM Radio or when the MxC is Started ..............................7-23
Ground Fault Interrupter Operates while the MxC is Running......................................7-23
Mechanical Oscillation ..................................................................................................7-23
Torque Generated for the Motor is Insufficient (Insufficient Power)..............................7-24
Motor Rotates Even When MxC Output is Stopped......................................................7-24
OV or OC is Detected when the Fan is Started or Stalls ..............................................7-25
Output Frequency does not Reach the Specified Frequency Reference...................... 7-25
8 Maintenance and Inspection.................................................. 8-1
Maintenance and Inspection.........................................................................8-2
Limited Warranty............................................................................................................. 8-2
Daily Inspection ..............................................................................................................8-2
Periodic Inspection .........................................................................................................8-2
Periodic Maintenance of Parts........................................................................................8-3
Precautions when Replacing the Control Board (1PCB) ................................................8-3
Types and Number of Cooling Fans Used in the MxC....................................................8-4
How to Replace the Cooling Fan .................................................................................... 8-4
How to Remove or Install the Control-Circuit Terminal Board ......................................8-11
9 Specifications ......................................................................... 9-1
Standard MxC Specifications........................................................................9-2
Specifications by Model ..................................................................................................9-2
Common Specifications ..................................................................................................9-3
Specifications for Options and Peripheral Devices.......................................9-5
10 Appendix ............................................................................... 10-1
MxC Control Methods.................................................................................10-2
Control Methods and Features ..................................................................................... 10-2
Control Methods and Applications ................................................................................ 10-4
MxC Application Precautions......................................................................10-5
Selection ....................................................................................................................... 10-5
Installation.....................................................................................................................10-8
Settings......................................................................................................................... 10-8
Handling........................................................................................................................10-8
Motor Application Precautions..................................................................10-10
Using the MxC to Run an Existing Standard Motor ....................................................10-10
Using the MxC for Motors other than Standard Yaskawa Motors ............................... 10-11
Power Transmission Mechanism (Speed Reducers, Belts, and Chains).................... 10-11
Wiring Examples.......................................................................................10-12
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