YASKAWA GA700 Technical Manual page 703

The value set in E4-02 becomes the base slip compensation value. The drive sets this parameter during the Auto-
Tuning process (Rotational Auto-Tuning and Stationary Auto-Tuning). If Auto-Tuning cannot be performed,
calculate the motor rated slip using the information written on the motor nameplate and the formula below:
E4-02 = f - (n × p) / 120
• f: Motor rated frequency (Hz)
• n: Rated motor speed (min
• p: Number of motor poles
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E4-03: Motor 2 Rated No-Load Current
No.
Name
(Hex.)
E4-03 Motor 2 Rated No-
Load Current
(0323)
Note:
The default settings and setting ranges appear in the following units:
• 2004 to 2042, 4002 to 4023: 0.01 A units
• 2056 to 2415, 4031 to 4726: 0.1 A units
The drive sets this parameter during the Auto-Tuning process (Rotational Auto-Tuning and Stationary Auto-
Tuning). 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.
Note:
The default setting of the no-load current is for performance with a 4-pole motor recommended by Yaskawa.
■
E4-04: Motor 2 Motor Poles
No.
Name
(Hex.)
E4-04 Motor 2 Motor Poles
(0324)
The value of E4-04 is automatically set to the value input for [Number of Motor Poles] by the Auto-Tuning
process.
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E4-05: Motor 2 Line-to-Line Resistance
No.
Name
(Hex.)
E4-05 Motor 2 Line-to-Line
Resistance
(0325)
Note:
This value represents the line-to-line resistance for motor 2. Be careful not to set this parameter with the single phase resistance.
If Auto-Tuning completes successfully, this value is automatically calculated. If Auto-Tuning cannot be executed,
obtain a test report from the motor manufacturer. Use the information found on the motor nameplate with any of
the following formulas to calculate the motor line-to-line resistance.
• 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.
■
E4-06: Motor 2 Leakage Inductance
No.
Name
(Hex.)
E4-06 Motor 2 Leakage
Inductance
(0326)
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual
-1 (r/min))
V/f CL-V/f OLV CLV
Sets the no-load current for motor 2 in amperes when operating at the rated
frequency and the no-load voltage.
V/f CL-V/f OLV CLV
Sets the number of poles for motor 2.
V/f CL-V/f OLV CLV
Sets the line-to-line resistance for motor 2 stator windings.
V/f CL-V/f OLV CLV
Sets the voltage drop due to motor 2 leakage inductance as a percentage of
motor 2 rated voltage while the motor 2 is operating at the rated frequency
and rated current.
Description
AOLV OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
AOLV OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
AOLV OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
AOLV OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
11.6 E: Motor Parameters
Default Setting
(Range)
Determined by o2-04
and C6-01
(0 to E4-01)
Default Setting
(Range)
4
(2 - 48)
Default Setting
(Range)
Determined by o2-04
and C6-01
(0.000 - 65.000 Ω)
Default Setting
(Range)
Determined by o2-04
and C6-01
(0.0 - 40.0%)
703
11