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MCF8316A: RPM drop issue

Part Number: MCF8316A

Hi,

The customer is testing it by applying it to the water pump motor.

RPM shaking occurs during parameter review.

- Approximately 150 RPM drops during the 4,500 RPM operation.

Please guide me on how to improve the RPM drop phenomenon.

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    [
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        "idx": 0,
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    [
      {
        "idx": 0,
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      },
      {
        "idx": 7,
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      {
        "idx": 8,
        "id": "vm_voltage",
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      {
        "idx": 9,
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      {
        "idx": 10,
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      {
        "idx": 11,
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        "idx": 12,
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      {
        "idx": 13,
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      {
        "idx": 14,
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      {
        "idx": 15,
        "id": "ibeta",
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      {
        "idx": 16,
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      {
        "idx": 17,
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        "idx": 19,
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        "idx": 22,
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        "idx": 23,
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      {
        "idx": 24,
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      {
        "idx": 25,
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      {
        "idx": 26,
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        "idx": 27,
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      {
        "idx": 28,
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      {
        "idx": 29,
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      {
        "idx": 30,
        "id": "ipd_state",
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      {
        "idx": 31,
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      {
        "idx": 32,
        "id": "ed",
        "value": "0x00000000"
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      {
        "idx": 33,
        "id": "eq",
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      },
      {
        "idx": 34,
        "id": "speed_fdbk",
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      },
      {
        "idx": 35,
        "id": "theta_est",
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    ]
  ]
}

RATED VOLTAGE : DC 24V

RATED SPEED : 4,500 RPM

NOLOAD SPEED : 4,500 RPM

RESISTANCE : 1.325 ohm

INDUCTANCE : 3.06mH