No. Parameter Name Setting Range Default
E2-03 Motor No-Load Current
0 to [E2-01]
(unit: 0.01 A)
Determined by
C6-01 and o2-04
Note: The number of decimal places in the parameter value depends on the drive model and the ND/HD selection in parameter C6-01. This value
has two decimal places (0.01 A) if the drive is set for a maximum applicable motor capacity up to and including 11 kW, and one decimal
place (0.1 A) if the maximum applicable motor capacity is higher than 11 kW.
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E2-04: Number of Motor Poles
Set the number of motor poles to E2-04. If Auto-Tuning completes successfully, the value entered to T1-06 will automatically
be saved to E2-04.
No. Parameter Name Setting Range Default
E2-04 Number of Motor Poles 2 to 48 4
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E2-05: Motor Line-to-Line Resistance
Sets the line-to-line resistance of the motor stator winding. If Auto-Tuning completes successfully, this value is automatically
calculated. Enter this value as line-to-line and not for each motor phase.
If Auto-Tuning is not possible, contact the motor manufacturer to find out the line-to-line resistance or measure it manually.
When using the manufacturer motor test report, calculate E2-05 by one of the formulas below:
• E-type insulation: Multiply 0.92 times the resistance value (Ω) listed on the test report at 75 °C.
• B-type insulation: Multiply 0.92 times the resistance value (Ω) listed on the test report at 75 °C.
• F-type insulation: Multiply 0.87 times the resistance value (Ω) listed on the test report at 115 °C.
No. Parameter Name Setting Range Default
E2-05 Motor Line-to-Line Resistance
0.000 to 65000 mΩ
<1>
Determined by
C6-01 and o2-04
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E2-06: Motor Leakage Inductance
Sets the voltage drop due to motor leakage inductance as a percentage of motor rated voltage. This value is automatically set
during Auto-Tuning (Rotational Auto-Tuning, Stationary Auto-Tuning 1, 2).
No. Parameter Name Setting Range Default
E2-06 Motor Leakage Inductance 0.0 to 40.0%
Determined by
C6-01 and o2-04
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E2-07: Motor Iron-Core Saturation Coefficient 1
Sets the motor iron saturation coefficient at 50% of the magnetic flux. If Rotational Auto-Tuning completes successfully, then
this value is automatically calculated and set to E2-07. This coefficient is used when operating with constant output.
No. Parameter Name Setting Range Default
E2-07 Motor Iron-Core Saturation Coefficient 1 0.00 to 0.50 0.50
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E2-08: Motor Iron-Core Saturation Coefficient 2
Sets the motor iron saturation coefficient at 75% of the magnetic flux. If Rotational Auto-Tuning completes successfully, then
this value is automatically calculated and set to E2-08. This coefficient is used when operating with constant output.
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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E2-09: Motor Mechanical Loss
Sets the motor mechanical loss as a percentage of motor rated power (kW) capacity.
Adjust this setting in the following circumstances:
• When there is a large amount of torque loss due to motor bearing friction.
• When there is a large amount of torque loss in a fan or pump application.
The setting for the mechanical loss is added to the torque.
1.5 E: Motor Parameters
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YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
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