Table 1. Parameters for Fine Tuning the Drive (CLV/PM)

Issue

Parameter Number

Possible Solutions

Default

Recommended Setting

  • Unsatisfactory motor torque and speed response

  • Hunting or oscillation

  • High speed

    C5-01 [ASR Proportional Gain 1]

  • Low speed

    C5-03 [ASR Proportional Gain 2]

  • If torque or speed response are slow, increase the setting value in increments of 5.00.

  • If hunting or oscillation occur, decrease the setting value.

20.00

10.00 to 50.00 1

  • High speed

    C5-02 [ASR Integral Time 1]

  • Low speed

    C5-04 [ASR Integral Time 2]

  • If torque or speed response are slow, decrease the setting value.

  • If hunting or oscillation occur, increase the setting value.

0.500 s

0.300 to 1.000 s 1

The drive cannot find speed response for low speed or high speed.

  • C5-07 [ASR Gain Switchover Frequency]

  • High speed

    C5-01 [ASR Proportional Gain 1]

    C5-02 [ASR Integral Time 1]

  • Low speed

    C5-03 [ASR Proportional Gain 2]

    C5-04 [ASR Integral Time 2]

Change the ASR proportional gain and ASR integral time to conform to the output frequency.

  • C5-07 = 0.0 %

  • C5-01 = 20.00

  • C5-02 = 0.500 s

  • C5-03 = 20.00

  • C5-04 = 0.500 s

0.0% to maximum rotation speed

Hunting or oscillation

C5-06 [ASR Delay Time]

If the rigidity of the machine is unsatisfactory and vibration is possible, increase the setting value in increments of 0.010.

0.004 s

0.004 to 0.020 s 1

Step-out

E1-xx parameters, E5-xx parameters

Refer to the motor nameplate or test report and set E1-xx or E5-xx correctly.

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1

The best values for a no-load operation are different than the best values for actual loading operation.