Closed Loop Vector Control Method

• 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 (P)] ¹

• 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 - 50.00

• High speed

  C5-02 [ASR Integral Time 1]

• Low speed

  C5-04 [ASR Integral Time 2] ¹

• 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 s to 1.000 s

The drive cannot find ASR proportional gain or integral time for low speed or high speed.

C5-07 [ASR Gain Switchover Frequency] ¹

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

0.0 Hz

0.0 Hz to maximum output frequency

Hunting or oscillation

C5-06 [ASR Delay Time] ¹

• If torque or speed response are slow, decrease the setting value in increments of 0.010.

• If the rigidity of the machine is unsatisfactory and vibration is possible, increase the setting value.

0.004 s

0.004 s to 0.020 s

• The volume of the motor excitation sound is too high.

• Hunting or oscillation in the low speed range (3 Hz or lower)

C6-02 [Carrier Frequency Selection]

• If the volume of the motor excitation sound is too high, increase the carrier frequency.

• If hunting or oscillation occur the the low speed range, decrease the carrier frequency.

1 (2.0 kHz) ²

2.0 kHz to upper limit value