2.5 E: Motor Parameters
158 YASKAWA ELECTRIC TOEP C710687 03B FSDrive-MV1000 Parameter Guide
n 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, then contact the motor manufacturer to determine 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.
n
E2-06: Motor Leakage Inductance
Sets the voltage drop due to motor leakage inductance as a percentage of motor rated voltage.
n
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.
n
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 in E2-08. This coefficient is used when operating with constant output.
n
E2-09: Motor Mechanical Loss
This parameter sets to 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.
n
E2-10: Motor Iron Loss for Torque Compensation
This parameter sets the motor iron loss in watts.
No.
<1> For details on the default settings, refer to Defaults by Drive Model Selection (o2-04) on page 87.
Name Setting Range Default
E2-05 Motor Line-to-Line Resistance 0.000 to 65.000 Ω Determined by o2-04 <1>
No.
<1> For details on the default settings, refer to Defaults by Drive Model Selection (o2-04) on page 87.
Name Setting Range Default
E2-06 Motor Leakage Inductance 0.0 to 40.0% Determined by o2-04 <1>
No. Name Setting Range Default
E2-07 Motor Iron-Core Saturation Coefficient 1 0.00 to 0.50 0.50
No. Name Setting Range Default
E2-08 Motor Iron-Core Saturation Coefficient 2 [E2-07] to 0.75 0.75
No. Name Setting Range Default
E2-09 Motor Mechanical Loss 0.0 to 10.0% 0.0%
No.
<1> For details on the default settings, refer to Defaults by Drive Model Selection (o2-04) on page 87.
Name Setting Range Default
E2-10 Motor Iron Loss for Torque Compensation 0 to 65535 W Determined by o2-04 <1>
MV1000ParameterGuide_E_conditional.book 158 ページ ２０１３年１０月１１日 金曜日 午後８時１８分
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