Parameter Details
12
12.6 E: Motor Parameters
YASKAWA SIEPC71061753C GA500 Technical Manual 591
The drive automatically sets this parameter during Auto-Tuning. When you cannot do Auto-Tuning, you can also
use the motor no-load current on the motor test report to enter this value manually. Get the test report from the
motor manufacturer.
Note:
The default setting of the no-load current is for a 4-pole motor recommended by Yaskawa.
■ E2-04: Motor Pole Count
No.
(Hex.)
Name Description
Default
(Range)
E2-04
(0311)
Motor Pole Count
Sets the number of motor poles.
4
(2 - 120)
Note:
• When A1-02 = 0 [Control Method Selection = V/f], the maximum value is 120.
• When A1-02 = 2 [OLV], the maximum value is 48.
Auto-Tuning automatically sets this parameter to the value of [Number of Motor Poles].
■ E2-05: Motor Line-to-Line Resistance
No.
(Hex.)
Name Description
Default
(Range)
E2-05
(0312)
Motor Line-to-Line
Resistance
Sets the line-to-line resistance for the motor stator windings.
Determined by o2-04, C6-
01
(0.000 - 65.000 Ω)
Note:
This value is the motor line-to-line resistance. Do not set this parameter with the resistance per phase.
Auto-Tuning automatically sets this parameter. If you cannot do Auto-Tuning, use the test report from the motor
manufacturer to configure the settings. Use one of these formulas to calculate the motor line-to-line resistance:
• E-type insulation: [the resistance value (Ω) shown on the test report at 75 °C] × 0.822
• B-type insulation: [the resistance value (Ω) shown on the test report at 75 °C] × 0.822
• F-type insulation: [the resistance value (Ω) shown on the test report at 115 °C] × 0.728
■ E2-06: Motor Leakage Inductance
No.
(Hex.)
Name Description
Default
(Range)
E2-06
(0313)
Motor Leakage Inductance
Sets the voltage drop from motor leakage inductance when the motor is operating at the rated
frequency and rated current. This value is a percentage of Motor Rated Voltage.
Determined by o2-04, C6-
01
(0.0 - 60.0%)
The drive automatically sets this parameter during Auto-Tuning.
Note:
The motor nameplate does not usually show the quantity of voltage drop. If you do not know the value of the motor leakage inductance,
contact the motor manufacturer to receive a copy of the motor test report.
■ E2-07: Motor Saturation Coefficient 1
No.
(Hex.)
Name Description
Default
(Range)
E2-07
(0314)
Motor Saturation
Coefficient 1
Sets the motor iron-core saturation coefficient at 50% of the magnetic flux.
0.50
(0.00 - 0.50)
The drive uses this coefficient when it operates with constant output. The drive uses this coefficient when it
operates the motor in the constant output range.
■ E2-08: Motor Saturation Coefficient 2
No.
(Hex.)
Name Description
Default
(Range)
E2-08
(0315)
Motor Saturation
Coefficient 2
Sets the motor iron-core saturation coefficient at 75% of the magnetic flux.
0.75
(E2-07 - 0.75)
The drive uses this coefficient when it operates with constant output. The drive uses this coefficient when it
operates the motor in the constant output range.
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