No. Parameter Name Setting Range Default
E4-02 Motor 2 Rated Slip 0.00 to 20.00 Hz
Depending on
o2-04
n
E4-03: Motor 2 Rated No-Load Current
Set E4-03 to the motor no-load current at rated voltage and rated frequency. If Rotational Auto-Tuning completes
successfully,
this value is automatically calculated. If Auto-Tuning
can not be performed contact the motor manufacturer
for information about the no-load current.
No. Parameter Name Setting Range Default
E4-03 Motor 2 Rated No-Load Current 0 to [E4-01]
Depending on
o2-04
Note: Display is in the following units: BA0001 to BA0018, 2A0001 to 2A0040, and 4A0001 to 4A0023: 0.01 A units.
2A0056 to 2A0069, 4A0031 to 4A0038: 0.1 A units.
n
E4-04: Motor 2 Motor Poles
Set
the pole number of motor 2 to E4-04. During Auto-Tuning the value must entered to parameter T1-06. If Auto-Tuning
completes successfully, the entered value will automatically be saved to E4-04.
No. Parameter Name Setting Range Default
E4-04 Motor 2 Motor Poles 2 to 48 4
n
E4-05: Motor 2 Line-to-Line Resistance
Sets the line-to-line resistance of motor 2 stator winding. If the Auto-tuning completes successfully, this value is
automatically calculated. Remember this value must be entered as line-line and not line-neutral.
No. Parameter Name Setting Range Default
E4-05 Motor 2 Line-to-Line Resistance 0.000 to 65.000 Ω
Depending on
o2-04
Note: The setting range is 0.00 to 130.00 when using a drive capacity of 0.2 kW or less.
Refer to E2-05: Motor Line-to-Line Resistance on page 166 to manually enter this parameter setting.
n
E4-06: Motor 2 Leakage Inductance
Sets the voltage drop due to motor leakage inductance of motor 2. The value is set as a percentage of the rated voltage.
No. Parameter Name Setting Range Default
E4-06 Motor 2 Leakage Inductance 0.0 to 40.0%
Depending on
o2-04
n
E4-07: Motor 2 Motor Iron-Core Saturation Coefficient 1
Sets the motor 2 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
n
E4-08: Motor 2 Motor Iron-Core Saturation Coefficient 2
Sets
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
n
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.
5.5 E: Motor Parameters
YASKAWA ELECTRIC SIEP C710606 16C YASKAWA AC Drive – V1000 Technical Manual
169
5
Parameter Details
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