xiv
Increasing the Speed Reference Response (Feed Forward Control) ........................ 6-120
Droop Control Function .............................................................................................. 6-121
Zero-Servo Function................................................................................................... 6-123
Digital Operator Functions........................................................................ 6-125
Setting Digital Operator Functions ............................................................................. 6-125
Copying Parameters................................................................................................... 6-128
Writing Parameters from the Digital Operator ............................................................ 6-133
Setting a Password .................................................................................................... 6-133
Displaying User-Set Parameters Only........................................................................ 6-134
Options..................................................................................................... 6-135
Performing Speed Control with a PG Encoder ........................................................... 6-135
Using Digital Output Cards......................................................................................... 6-138
Using an Analog Reference Card............................................................................... 6-141
Using a Digital Speed Reference Card ...................................................................... 6-142
Elevator and Hoist Type Applications....................................................... 6-146
Brake On/Off Sequence ............................................................................................. 6-146
Auto-Tuning ................................................................................................................ 6-147
Momentary Power Loss Ridethrough ......................................................................... 6-148
Torque Limit................................................................................................................ 6-148
I/O Phase Loss Protection and Overtorque Detection ............................................... 6-148
External Baseblock Signal.......................................................................................... 6-148
Acceleration/Deceleration Time.................................................................................. 6-148
Output Side Magnetic Contactor ................................................................................ 6-148
Control Related Adjustments...................................................................................... 6-149
Reducing Shock at Start/Stop and during Acceleration/Deceleration......................... 6-151
Confirming Start Up Current and Reducing Carrier Frequency.................................. 6-154
Maintenance Timer Display Function ....................................................... 6-155
Settings Required to Enable the Maintenance Timer Display Function ..................... 6-155
Settings Required After Replacement of Cooling Fan or Capacitors on PCB Board . 6-156
7 Troubleshooting ......................................................................7-1
Protective and Diagnostic Functions ............................................................ 7-2
Fault Detection ............................................................................................................... 7-2
Alarm Detection............................................................................................................ 7-10
Operation Errors........................................................................................................... 7-14
Errors During Auto-Tuning .......................................................................................... 7-15
Errors when Using the Digital Operator Copy Function................................................ 7-16
Troubleshooting.......................................................................................... 7-17
Trouble Setting Parameters.......................................................................................... 7-17
If the Motor Does Not Operate ..................................................................................... 7-18
Direction of the Motor Rotation is Reversed................................................................. 7-20
Motor Does Not Produce Torque or Acceleration is Slow ............................................ 7-20
Motor Operates Faster than the Frequency Reference................................................ 7-20
Slip Compensation Function has Low Speed Precision ............................................... 7-21
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