1.5 E: Motor Parameters
118 YASKAWA ELECTRIC SIEP C710606 10A YASKAWA AC Drive - V1000 PRELIM. Programming Manual
Note: The setting range becomes 0.00 to 130.00 when using less than a 0.2 kW motor.
If Auto-Tuning is not possible, then contact the motor manufacturer to find out the line-to-
line resistance or measure it manually. When using the manufacturer‘s Motor Test Report,
calculate E2-05 by the formulas below.
• E-type insulation: Multiply 0.92 times the resistance value (W) listed on the Test Report at
75°C
• B-type insulation: Multiply 0.92 times the resistance value (W) listed on the Test Report
at 75°C.
• F-type insulation: Multiply 0.87 times the resistance value (W) listed on the Test Report at
115°C.
■ E2-06: Motor Leakage Inductance
Sets the voltage drop due to motor leakage inductance as a percentage of motor rated
voltage.
■ E2-07: Motor Iron-Core Saturation Coefficient 1
This parameter sets the motor iron saturation coefficient at 50% of the magnetic flux. If
Rotational Auto-Tuning completes successfully, then this value is automatically calculated.
■ E2-08: Motor Iron-Core Saturation Coefficient 2
This parameter sets the motor iron saturation coefficient at 75% of the magnetic flux. If
Rotational Auto-Tuning completes successfully, then this value is automatically calculated.
■ E2-09: Motor Mechanical Loss
This parameter sets to the motor mechanical loss as a percentage of motor rated power (kW)
capacity.
No. Parameter Name Setting Range Default
E2-06 Motor Leakage Inductance 0.0 to 40.0%
Depending on
o2-04
No. Parameter Name Setting Range Default
E2-07 Motor Iron-Core Saturation Coefficient 1
0.00 to 0.50 0.50
No. Parameter Name Setting Range Default
E2-08 Motor Iron-Core Saturation Coefficient 2 E2-07 to 0.75 0.75
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