Name: YASKAWA E1000
Brand: YASKAWA
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4.7 Auto-Tuning

Start-Up Programming

& Operation

YASKAWA ELECTRIC SIEP C710616 35D YASKAWA AC Drive E1000 Technical Manual 117

■ T1-03: Motor Rated Voltage (T1-01=3)

Sets the motor rated voltage according to the motor nameplate value. If the motor to be operated above its base speed,

enter the voltage at base speed here.

For better control precision around rated speed when using a vector control mode, it can be helpful to enter the no-load

voltage for the motor here. The motor’s “no-load voltage” refers to the voltage needed to operate the motor under no-load

conditions at rated speed. The no-load voltage can usually be found in the motor test report available from the

manufacturer. If no data is available, enter approximately 90% of the rated voltage printed on the motor nameplate. Note

that this might increase the output current reducing the overload margin.

■

T1-04: Motor Rated Current

Sets the motor rated current according to the motor nameplate value. For optimal performance, the motor rated current

should be between 50 and 100% of the drive rated current. Enter the current at the motor base speed.

■

T1-05: Motor Base Frequency (T1-01=3)

Sets the motor rated frequency according to the motor nameplate value. If a motor with an extended speed range is used

or the motor is used in the field weakening area, enter the maximum frequency to E1-04 after Auto-Tuning is complete.

■

T1-06: Number of Motor Poles (T1-01=3)

Sets the number of motor poles according to the motor nameplate value.

■

T1-07: Motor Base Speed (T1-01=3)

Used to set the motor rated speed according to the motor nameplate value. If a motor with an extended speed range is

used or the motor is used in the field weakening area, enter the speed at base frequency here.

■

T1-11: Motor Iron Loss (T1-01=3)

Provides iron loss information for determining the Energy Saving coefficient. T1-11 will first display a value for the

motor iron loss that the drive automatically calculated the when motor capacity was entered to T1-02. If the motor test

report is available, enter the motor iron loss value listed there.

No.

<1> Values shown here are for 200 V class drives. Double values when using a 400 V class unit.

Name Setting Range Default

T1-03 <1>

Motor Rated Voltage 0.0 to 255.5 V 200.0 V