xiii
Run Command ...........................................................................................6-15
Selecting the Run Command Source ...........................................................................6-15
Stopping Methods.......................................................................................6-17
Selecting the Stopping Method when a Stop Command is Sent...................................6-17
Using the DC Injection Brake........................................................................................6-22
Using an Emergency Stop ............................................................................................6-24
Acceleration and Deceleration Characteristics...........................................6-25
Setting Acceleration and Deceleration Times...............................................................6-25
Accelerating and Decelerating Heavy Loads (Dwell Function).....................................6-29
Preventing the Motor from Stalling During Acceleration
(Stall Prevention During Acceleration Function) ...........................................................6-30
Preventing Overvoltage During Deceleration
(Stall Prevention During Deceleration Function)...........................................................6-32
Preventing Overvoltage by Automatically Reducing the Regenerative Torque Limit
(Overvoltage Inhibit Function, SPEC: E or later only)...................................................6-33
Adjusting Frequency References ...............................................................6-35
Adjusting Analog Frequency References .....................................................................6-35
Operation Avoiding Resonance (Jump Frequency Function) .......................................6-38
Adjusting Frequency Reference Using Pulse Train Inputs ...........................................6-40
Speed Limit (Frequency Reference Limit Function) ...................................6-41
Limiting Maximum Output Frequency ...........................................................................6-41
Limiting Minimum Frequency........................................................................................6-41
Improved Operating Efficiency ...................................................................6-43
Reducing Motor Speed Fluctuation (Slip Compensation Function) ..............................6-43
Compensating for Insufficient Torque at Startup and Low-speed Operation
(Torque Compensation) ................................................................................................6-45
Hunting-prevention Function.........................................................................................6-47
Stabilizing Speed (Speed Feedback Detection Function) ............................................6-48
Machine Protection.....................................................................................6-49
Limiting Motor Torque (Torque Limit Function) .............................................................6-49
Preventing Motor Stalling During Operation .................................................................6-52
Changing Stall Prevention Level during Operation Using an Analog Input ..................6-53
Using Frequency Detection ..........................................................................................6-53
Detecting Motor Torque ................................................................................................6-56
Changing Overtorque and Undertorque Detection Levels Using an Analog Input .......6-59
Motor Overload Protection............................................................................................6-60
Setting Motor Protection Operation Time......................................................................6-62
Motor Overheating Protection Using PTC Thermistor Inputs........................................6-63
Limiting Motor Rotation Direction..................................................................................6-65
Continuing Operation..................................................................................6-66
Restarting Automatically After Power Is Restored........................................................6-66
Speed Search ...............................................................................................................6-67
Continuing Operation at Constant Speed When Frequency Reference Is Lost............6-74
Restarting Operation After Transient Fault (Auto Restart Function).............................6-75
Operation Selection After Cooling Fan Fault (SPEC: E or Later Only).........................6-76
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