Table 1. Adjustment of Drive Control (Closed Loop Vector Control Method)

Adjustment description

Parameter Number

Possible Solutions

Default

Recommended Setting

  • Torque, increase speed response

  • Prevent hunting and oscillation

C5-01 [ASR Proportional Gain 1]

  • If the torque and speed response are slow, increase the setting value.

  • If there is hunting or oscillation, decrease the setting value.

20.00

10.00 - 50.00

C5-03 [ASR Proportional Gain 2]

  • Prevent hunting or oscillation at high speed range (120 Hz or more)

C4-25 [High-Speed Voltage Compensation]

Adjust the setting value.

1 [Enabled]

0 [Disabled]

  • Torque, increase speed response

  • Prevent hunting and oscillation

C5-02 [ASR Integral Time 1]

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

  • If there is hunting or oscillation, increase the setting value.

0.500 s

0.300 s to 1.000 s

C5-04 [ASR Integral Time 2]

Change the ASR proportional gain and ASR integral time in accordance with the output frequency.

C5-07 [ASR Gain Switchover Frequency]

If you cannot get ASR proportional gain or integral time for low speed range or high speed range, switch as specified by the output frequency.

0.0 Hz

(Do not switch)

0.0 Hz to maximum output frequency

  • Prevent hunting and oscillation

C5-06 [ASR Delay Time]

  • If there is unsatisfactory machine rigidity and oscillation is possible, increase the setting value.

0.004 s

0.004 s to 0.020 s