xiii
Stabilizing Speed (Speed Feedback Detection Function) ............................................6-37
Machine Protection.....................................................................................6-38
Reducing Noise and Leakage Current..........................................................................6-38
Limiting Motor Torque (Torque Limit Function).............................................................6-40
Stall Prevention during Run ..........................................................................................6-43
Changing Stall Prevention Level during Run Using an Analog Input............................6-44
Using Frequency Detection: L4-01 to L4-05 .................................................................6-44
Detecting Motor Torque ................................................................................................6-48
Changing Overtorque and Undertorque Detection Levels Using an Analog Input .......6-50
Motor Overload Protection............................................................................................6-51
Setting Motor Protection Operation Time .....................................................................6-53
Motor Overheating Protection Using PTC Thermistor Inputs .......................................6-54
Limiting Motor Rotation Direction..................................................................................6-55
Continuing Operation..................................................................................6-56
Restarting Automatically after Power is Restored ........................................................6-56
Speed Search ...............................................................................................................6-59
Continue Running after Frequency Reference Loss.....................................................6-64
Restarting Operation after Transient Fault (Auto-Restart Function) .............................6-65
MxC Protection ...........................................................................................6-66
Reducing MxC Overheating Pre-Alarm Warning Levels...............................................6-66
Input Terminal Functions ............................................................................6-67
Temporarily Switching Operation between Digital Operator and Control
Circuit Terminals ...........................................................................................................6-67
Blocking MxC Outputs (Baseblock Commands)...........................................................6-68
Stopping Acceleration and Deceleration (Accel/Decel Ramp Hold) .............................6-69
Raising and Lowering Frequency References Using Contact Signals (UP/DOWN).....6-70
Accelerating and Decelerating Parameter Frequencies in the Analog References
(+/- Speed)....................................................................................................................6-73
Hold Analog Frequency Using User-set Timing............................................................6-74
Switching Operations between a Communications Option Card and Control
Circuit Terminals ...........................................................................................................6-74
Jog Frequency Operation without Forward and Reverse Commands
(FJOG/RJOG)...............................................................................................................6-75
Stopping the MxC by Notifying Programming Device Errors to the MxC (External Fault
Function).......................................................................................................................6-76
Output Terminal Functions..........................................................................6-77
Monitor Parameters ....................................................................................6-79
Using the Analog Monitor Parameters..........................................................................6-79
Individual Functions....................................................................................6-82
Using MEMOBUS Communications .............................................................................6-82
Using the Timer Function..............................................................................................6-93
Using PID Control .........................................................................................................6-94
Setting Motor Parameters...........................................................................................6-102
Setting the V/f Pattern.................................................................................................6-104
Torque Control............................................................................................................6-108
Speed Control (ASR) Structure................................................................................... 6-115
