5.5 E: Motor Parameters
YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual 149
â– E2-02: Motor Rated Slip
Sets the motor rated slip in Hz. This value is automatically set during Rotational Auto-Tuning.
If Auto-Tuning can not be performed calculate the motor rated slip using the information written on the motor nameplate
and the formula below:
E2-02 = f - (n x p)/120
(f: rated frequency (Hz), n: rated motor speed (r/min), p: number of motor poles)
â–
E2-03: Motor No-Load Current
Set E2-03 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.
Note: Setting units vary by the maximum allowable motor capacity, which is determined by C6-01 and o2-04. Drives up to 11 kW
display a two-digit value, while drives 11 kW and larger display a single-digit value.
â– E2-04: Number of Motor Poles
Set the number of motor poles to E2-04. This value must be entered during Auto-Tuning, and will automatically be saved
to E2-04 if Auto-Tuning completes successfully.
â–
E2-05: Motor Line-to-Line Resistance
Sets the line-to-line resistance of the motor 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.
Note: The setting range becomes 0.00 to 130.00 when using TABV0002, TA2V0002, TA4V0001 and smaller.
If Auto-Tuning is not possible, then 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 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.
â–
E2-06: Motor Leakage Inductance
Sets the voltage drop due to motor leakage inductance as a percentage of motor rated voltage.
No. Parameter Name Setting Range Default
E2-02 Motor Rated Slip 0.00 to 20.00 Hz
Determined by
C6-01 and o2-04
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
No. Parameter Name Setting Range Default
E2-04 Number of Motor Poles 2 to 48 poles 4 poles
No. Parameter Name Setting Range Default
E2-05 Motor Line-to-Line Resistance 0.000 to 65.000 Ω
Determined by
C6-01 and o2-04
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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