YASKAWA OYMC V1000, Programming Manual

Page: 117 / 408

1.5 E: Motor Parameters
YASKAWA ELECTRIC SIEP C710606 10A YASKAWA AC Drive - V1000 PRELIM. Programming Manual 117
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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)
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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: The resolution of E2-03 depends on the rated output power of the drive. If a drive is set up for
7.5 kW rated output power (ND or HD rating) the value will have two decimal places. It will
have one decimal place if a drive is set up for 11 kW and higher.
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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.
■
E2-05: Motor Line-to-Line Resistance
Sets the line-to-line resistance of the motor’s 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
E2-02 Motor Rated Slip 0.00 to 20.00 Hz
Depending on
o2-04
No. Parameter Name Setting Range Default
E2-03 Motor No-Load Current 0 to [E2-01]
Depending on
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
Depending on
o2-04