This section gives information about Auto-Tuning for PM motors. Auto-Tuning sets these parameters:

  • Motor parameters E1-xx, E5-xx

  • Speed feedback detection uses F1-xx (only with CLV/PM)

Table 1. Auto-Tuning for PM Motors

Mode

Parameter Settings

Application Conditions and Benefits

Applicable Control Method

(A1-02 Setting)

OLV/PM

(5)

AOLV/PM

(6)

CLV/PM

(7)

Manual Entry w/ Motor Data Sheet

T2-01 = 0

  • When the information from the motor test report or motor nameplate is available.

  • Rotational/Stationary Auto-Tuning that energizes the motor is not done. Manually input the necessary motor parameters.

x

x

x

PM Stationary Auto-Tuning

T2-01 = 1

  • When the information from the motor test report or motor nameplate is not available.

Note:

With Stationary Auto-Tuning, the energized drive stays stopped for approximately 1 minute. During this time, the drive automatically measures the necessary motor parameters.

x

x

x

PM Stationary Auto-Tuning for Stator Resistance

T2-01 = 2

  • After Auto-Tuning, the wiring distance between the drive and motor changed by 50 m (164 ft) or more.

  • When the motor output and drive capacity are different.

x

x

x

Z-Pulse Offset (Pole Position)

T2-01 = 3

  • When you do not know the encoder Z-pulse offset.

  • When the encoder was replaced

  • If you have compensated for the deviation from Z phase (Δθ).

Note:

The motor will rotate slowly while the drive measures the encoder base position.

-

-

x

Rotational (Ld, Lq, R, back-EMF)

T2-01 = 4

  • When the information from the motor test report or motor nameplate is not available.

  • When you can decouple the motor and load and the motor can rotate freely while Auto-Tuning.

  • The drive will automatically set the values measured during Auto-Tuning to the motor parameters.

x

x

x

High Frequency Injection

T2-01 = 5

  • Automatically sets the control parameters that are necessary to set n8-35 = 1 [Initial Pole Detection Method = High Frequency Injection] or n8-57 = 1 [HFI Overlap Selection = Enabled].

  • Applicable to IPM motors only.

  • Do Auto-Tuning with the motor connected to the drive.

Note:

When you set n8-35 = 1 or n8-57 = 1, do High Frequency Injection Auto-Tuning. Set the data on the motor nameplate to the drive before you do High Frequency Injection Auto-Tuning. In High Frequency Injection Auto-Tuning, the drive energizes the stopped motor and automatically adjusts the parameters.

x

x

x

Input Data for PM Motor Auto-Tuning

To do Auto-Tuning, input data for the items in Table 2 and Table 3 that have an "x". Before you start Auto-Tuning, prepare the motor test report or record the information from the motor nameplate as a reference.

Table 2. Input Data for PM Motor Auto-Tuning

Input Data

Parameter

Unit

Auto-Tuning Mode

(T2-01 Setting)

Manual Entry w/ Motor Data Sheet

(0)

PM Stationary Auto-Tuning

(1)

PM Stationary Auto-Tuning for Stator Resistance

(2)

Control Method Selection

A1-02

-

5, 6, 7

5

6, 7

5

6, 7

5, 6, 7

PM Motor Code Selection

T2-02

-

Motor code of Yaskawa motor 1

FFFF 2

FFFF 2

-

-

-

PM Motor Type

T2-03

-

-

-

-

x

x

-

PM Motor Rated Power

T2-04

kW

-

x

x

x

x

-

PM Motor Rated Voltage

T2-05

V

-

x

x

x

x

-

PM Motor Rated Current

T2-06

A

-

x

x

x

x

x

PM Motor Base Frequency

T2-07

Hz

-

x

-

x

-

-

Number of PM Motor Poles

T2-08

-

-

x

x

x

x

-

PM Motor Base Speed

T2-09

min-1

-

-

x

-

x

-

PM Motor Stator Resistance

T2-10