YASKAWA A1000 Series Technical Manual page 199

E2-03: Motor No-Load Current
■
Set the no-load current for the motor 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 1, 2). 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.
No.
E2-03
Note: This value's number of decimal places depends on the drive model and the Heavy/Normal duty selection in parameter C6-01.
The value will have two decimal places (0.01 A) if the drive is set for a Maximum Applicable Motor Capacity up to 11 kW (refer
to Table A.2 and Table
E2-04: Number of Motor Poles
■
Set the number of motor poles to E2-04. If Auto-Tuning completes successfully, the value entered to T1-06 will
automatically be saved to E2-04.
No.
E2-04
E2-05: Motor Line-to-Line Resistance
■
Sets the line-to-line resistance of the motor stator winding. If Auto-Tuning completes successfully, this value is
automatically calculated. Remember that this value must be entered as line-to-line and not for each motor phase.
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.
No.
E2-05
■ E2-06: Motor Leakage Inductance
Sets the voltage drop due to motor leakage inductance as a percentage of motor rated voltage. This value is automatically
set during Auto-Tuning (Rotational Auto-Tuning, Stationary Auto-Tuning 1, 2).
No.
E2-06
E2-07: Motor Iron-Core Saturation Coefficient 1
■
Sets the motor iron saturation coefficient at 50% of the magnetic flux. If Rotational Auto-Tuning completes successfully,
then this value is automatically calculated and set to E2-07. This coefficient is used when operating with constant output.
No.
E2-07
E2-08: Motor Iron-Core Saturation Coefficient 2
■
Sets the motor iron saturation coefficient at 75% of the magnetic flux. If Rotational Auto-Tuning completes successfully,
then this value is automatically and set to E2-08. This coefficient is used when operating with constant output.
No.
E2-08
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
Parameter Name
Motor No-Load Current
A.3) and one decimal place (0.1 A) if the set Maximum Applicable Motor Capacity is higher than 11 kW
Parameter Name
Number of Motor Poles
Parameter Name
Motor Line-to-Line Resistance
Parameter Name
Motor Leakage Inductance
Parameter Name
Motor Iron-Core Saturation Coefficient 1
Parameter Name
Motor Iron-Core Saturation Coefficient 2
5.5 E: Motor Parameters
Setting Range
0 to [E2-01] Determined by C6-01 and
(unit: 0.01 A)
Setting Range
2 to 48
Setting Range
Determined by C6-01 and
0.000 to 65.000 Ω
Setting Range
Determined by C6-01 and
0.0 to 40.0%
Setting Range
0.00 to 0.50
Setting Range
E2-07 to 0.75
Default
o2-04
Default
4
Default
o2-04
Default
o2-04
5
Default
0.50
Default
0.75
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