YASKAWA U1000 Series - Page 253

5.5 E: Motor Parameters
YASKAWA ELECTRIC SIEP C710636 02B YASKAWA U1000 Technical Manual 253
Parameter Details
5
■ E4-02: Motor 2 Rated Slip
This parameter sets the motor 2 rated slip frequency. Slip compensation is based on this value. The drive calculates this
value automatically during Auto-Tuning (Rotational Auto-Tuning and Stationary Auto-Tuning 2 and 3).
For information on calculating the motor rated slip, refer to E2-02: Motor Rated Slip on page 248.
■
E4-03: Motor 2 No-Load Current
Set the no-load current for motor 2 in amperes when operating at the rated frequency and the no-load voltage. The drive
sets E2-03 during the Auto-Tuning process (Rotational Auto-Tuning and Stationary Auto-Tuning 2 and 3). The motor
no-load current listed in the motor test report can also be entered to E2-03 manually. Contact the motor manufacturer to
receive a copy of the motor test report.
Note: Display is in the following units.
 CIMR-U20028, 20042, and 40011 to 40027: 0.01 A units
 CIMR-U20054 to 20248, and 40034 to 40930: 0.1 A units
■ E4-04: Motor 2 Motor Poles
Set the pole number of motor 2 to E4-04. If Auto-Tuning completes successfully, the entered value to T1-06 will be
automatically saved to E4-04.
■
E4-05: Motor 2 Line-to-Line Resistance
Sets the line-to-line resistance for the motor 2 stator winding. If Auto-Tuning completes successfully, this value is
automatically calculated. Remember this value must be entered as line-to-line and not for each motor phase. Refer to
E2-05: Motor Line-to-Line Resistance on page 249 to manually enter this parameter setting.
■
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 (Rotational Auto-Tuning and Stationary Auto-Tuning 2 and 3).
■
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. Adjust this parameter when operating in the constant output range.
No. Parameter Name Setting Range Default
E4-02 Motor 2 Rated Slip 0.00 to 20.00 Hz
Determined by C6-01 and
o2-04
No. Parameter Name Setting Range Default
E4-03 Motor 2 No-Load Current 0 to [E4-01]
Determined by C6-01 and
o2-04
No. Parameter Name Setting Range Default
E4-04 Motor 2 Motor Poles 2 to 48 4
No. Parameter Name Setting Range Default
E4-05
<1> The units are expressed in mΩ for models CIMR-U40900, CIMR-U40930.
Motor 2 Line-to-Line Resistance 0.000 to 65.000 Ω <1>
Determined by C6-01 and
o2-04
No. Parameter Name Setting Range Default
E4-06 Motor 2 Leakage Inductance 0.0 to 40.0%
Determined by C6-01 and
o2-04
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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