EZ Open 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]

• 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.

10.00

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 s to 1.000 s¹

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

C5-07 [ASR Gain Switchover Frequency]

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

0.0%

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 s to 0.020 s¹

Step-out

E9-xx parameters

Refer to the motor nameplate or test report and set E9-xx correctly.

Oscillation when the motor starts.

n8-51 [Accel / Decel Pull-In Current]

Increase the setting value.

80%

Increase in increments of 5%.

Motor stalls.

L7-01 to L7-04 [Torque Limit]

Increase the setting value.

200%

Increase in increments of 10%.