YASKAWA CIPR-GA50C series Technical Manual page 565

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.
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E2-04: Motor Pole Count
No.
Name
(Hex.)
E2-04 Motor Pole Count
(0311)
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.
Name
(Hex.)
E2-05 Motor Line-to-Line
Resistance
(0312)
Note:
This value is the motor line-to-line resistance. Do not set this parameter with the single-phase resistance.
Auto-Tuning automatically sets this parameter. If you cannot do Auto-Tuning, use the test report from the motor
manufacturer to configure the settings. You can calculate the motor line-to-line resistance with one of these
formulas:
• E-type insulation: [the resistance value (Ω) shown on the test report at 75 °C] × 0.92
• B-type insulation: [the resistance value (Ω) shown on the test report at 75 °C] × 0.92
• F-type insulation: [the resistance value (Ω) shown on the test report at 115 °C] × 0.87
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E2-06: Motor Leakage Inductance
No.
Name
(Hex.)
E2-06 Motor Leakage Inductance
(0313)
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.
Name
(Hex.)
E2-07 Motor Saturation
Coefficient 1
(0314)
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.
Name
(Hex.)
E2-08 Motor Saturation
Coefficient 2
(0315)
YASKAWA SIEPC71061753A GA500 Technical Manual
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the number of motor poles.
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the line-to-line resistance for the motor stator windings.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
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.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the motor iron-core saturation coefficient at 50% of the magnetic flux.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the motor iron-core saturation coefficient at 75% of the magnetic flux.
Description
Description
Description
Description
Description
12.6 E: Motor Parameters
Default
(Range)
4
(2 - 120)
Default
(Range)
Determined by o2-04, C6-
01
(0.000 - 65.000 Ω)
Default
(Range)
Determined by o2-04, C6-
01
(0.0 - 60.0%)
Default
(Range)
0.50
(0.00 - 0.50)
Default
(Range)
0.75
(E2-07 - 0.75)
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