No. Parameter Name Setting Range Default
E4-02 Motor 2 Rated Slip 0.00 to 20.00 Determined by o2-04
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E4-03: Motor 2 Rated No-Load Current
Sets the magnetizing current of motor 2 as a percentage of the full load current. This value is automatically set during Rotational Auto-Tuning. If Auto-
Tuning cannot be performed, contact the motor manufacturer for this information so that it can be entered manually.
No. Parameter Name Setting Range Default
E4-03 Motor 2 Rated No-Load Current 0 to [E4-01] Determined by o2-04
Note: Set the lower and higher digits to the value corresponds to the capacity of the drive: 11 kW or less: Sets the lower 2 digits, 11 kW or higher: Set to the lowest digit
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E4-04: Motor 2 Motor Poles
Sets the number of motor poles for motor 2. This value should be entered during the Auto-Tuning process, after which this parameter will be automatically
set.
No. Parameter Name Setting Range Default
E4-04 Motor 2 Motor Poles 2 to 48 4
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E4-05: Motor 2 Line-to-Line Resistance
Sets the phase-to-phase resistance of motor 2 in ohms. This value is automatically set when Auto-Tuning is executed.
No. Parameter Name Setting Range Default
E4-05 Motor 2 Line-to-Line Resistance 0.000 to 65.000 Determined by o2-04
Note: The setting range is 0.00 to 130.00 when using a drive capacity of 0.2 kW or less.
E4-05 is the only parameter that is automatically set when Stationary Auto-Tuning is performed (also called, “Auto-Tuning for resistance between lines”).
If Auto-Tuning is not possible for some reason, contact the motor manufacturer to find out what the line-to-line resistance is for the motor, then calculate
this E4-05 using the appropriate formula 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.
• E-type insulation: Multiply 0.87 times the resistance value (W) listed on the Test Report at 115°C.
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E4-06: Motor 2 Leakage Inductance
Sets the voltage drop due to motor leakage inductance as a percentage of rated voltage of motor 2. This value is automatically set during Auto-Tuning.
No. Parameter Name Setting Range Default
E4-06 Motor 2 Leakage Inductance 0.0 to 40.0 Determined by o2-04
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E4-07: Motor 2 Motor Iron-Core Saturation Coefficient 1
Set to the motor iron saturation coefficient at 50% of magnetic flux. This value is automatically set during Rotational Auto-Tuning.
No. Parameter Name Setting Range Default
E4-07 Motor 2 Motor Iron-Core Saturation Coefficient 1 0.00 to 0.50 0.50
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E4-08: Motor 2 Motor Iron-Core Saturation Coefficient 2
Set to the motor iron saturation coefficient at 75% of magnetic flux. This value is automatically set during Rotational Auto-Tuning.
No. Parameter Name Setting Range Default
E4-08 Motor 2 Motor Iron-Core Saturation Coefficient 2 [E4-07] to 0.75 0.75
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E4-09: Motor 2 Mechanical Loss
Sets the motor mechanical loss as a percentage of motor rated power (kW).
No. Parameter Name Setting Range Default
E4-09 Motor 2 Mechanical Loss 0.00 to 10.0 0.0
This parameter seldom needs to be changed, but may need to be adjusted 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.
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E4-10: Motor 2 Iron Loss
Sets the motor iron loss in watts for motor 2.
No. Parameter Name Setting Range Default
E4-10 Motor 2 Iron Loss 0 to 65535 Determined by o2-04
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E4-11: Motor 2 Rated Capacity
Sets the motor rated capacity in units of 0.01 kW. This value is automatically set when Auto-Tuning is performed.
5.5 E: Motor Parameters
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YASKAWA ELECTRIC SIEP C710606 18A YASKAWA AC Drive – V1000 Technical Manual (Preliminary)
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