User`s manual
IV
Motor Overheating Protection Using PTC Thermistor Inputs ...................................... 6-50
Limiting Motor Rotation Direction and Output Phase Rotation .................................... 6-51
Automatic Restart ...................................................................................... 6-52
Restarting Automatically After Momentary Power Loss .............................................. 6-52
Speed Search .............................................................................................................. 6-53
Continuing Operation at Constant Speed when the Frequency Reference is Lost ..... 6-57
Restarting Operation After Transient Error (Auto Restart Function) ........................... 6-58
Inverter Protection ..................................................................................... 6-59
Overheating Protection for an Inverter-Mounted Braking Resistor .............................. 6-59
Inverter Overheat Protection ....................................................................................... 6-60
Input Open Phase Protection ...................................................................................... 6-60
Output Open Phase Protection ................................................................................... 6-61
Ground Fault Protection .............................................................................................. 6-61
Cooling Fan Control .................................................................................................... 6-61
Setting the Ambient Temperature ............................................................................... 6-62
OL2 Characteristics at Low Speed .............................................................................. 6-63
Input Terminal Functions ........................................................................... 6-64
Temporarily Switching Operation between Digital Operator and
Control Circuit Terminals ............................................................................................. 6-64
Blocking the Inverter Output (Baseblock Commands) ................................................ 6-64
OH2 (Overheat) Alarm Signal Input ............................................................................ 6-65
Multifunction Analog Input A2 Disable/Enable ............................................................ 6-65
Drive Enable/Disable ................................................................................................... 6-66
Stopping Acceleration and Deceleration (Acceleration/Deceleration Ramp Hold) ...... 6-66
Raising and Lowering Frequency References Using Contact Signals (UP/DOWN) ... 6-67
Adding/Subtracting a Fixed Speed to an Analog Reference (Trim Control) ................ 6-69
Hold Analog Frequency Using User-set Timing .......................................................... 6-71
Switching Operation Source to Communication Option Card ..................................... 6-72
Jog Frequency with Direction Commands (FJOG/RJOG) ........................................... 6-72
Stopping the Inverter on External Device Errors (External Error Function) ................. 6-73
Output Terminal Functions ........................................................................ 6-74
Monitor Parameters ................................................................................... 6-77
Using the Analog Monitor Outputs .............................................................................. 6-77
Using the Pulse Train Monitor Output ......................................................................... 6-78
Individual Functions .................................................................................. 6-80
Using MEMOBUS Communications ............................................................................ 6-80
Using the Timer Function ............................................................................................ 6-95
Using PID Control ........................................................................................................ 6-96
Energy-saving ........................................................................................................... 6-106
Field Weakening ........................................................................................................ 6-107
Field Forcing .............................................................................................................. 6-108
Setting Motor 1 Parameters ...................................................................................... 6-108
Setting the V/f Pattern 1 ............................................................................................ 6-110
Setting Motor 2 Parameters ...................................................................................... 6-116
Setting the V/f Pattern 2 ............................................................................................ 6-117
Torque Control .......................................................................................................... 6-118
Droop Control Function ............................................................................................. 6-124
Zero-Servo Function .................................................................................................. 6-125
Kinetic Energy Buffering ............................................................................................ 6-127
High Slip Braking (HSB) ............................................................................................ 6-128
Digital Operator Functions ...................................................................... 6-130