YASKAWA AC Drive-A1000 User Manual

E2-02 = f - (n × p)/120
(f: rated frequency (Hz), n: rated motor speed (r/min), p: number of motor poles)
n
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. Parameter Name Setting Range Default
E2-03 Motor No-Load Current
0 to [E2-01]
(unit: 0.01 A)
Determined by
C6-01 and o2-04
Note: The number of decimal places in the parameter value depends on the drive model and the ND/HD selection in parameter C6-01. This value
has two decimal places (0.01 A) if the drive is set for a maximum applicable motor capacity up to and including 11 kW, and one decimal place
(0.1 A) if the maximum applicable motor capacity is higher than 11 kW. Refer to Power Ratings on page 373.
n
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. Parameter Name Setting Range Default
E2-04 Number of Motor Poles 2 to 48 4
n
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. Enter this value as line-to-line and not for each motor phase.
If Auto-Tuning is not possible, 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 one of 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. Parameter Name Setting Range Default
E2-05 Motor Line-to-Line Resistance 0.000 to 65.000 Ω
Determined by
C6-01 and o2-04
n
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. Parameter Name Setting Range Default
E2-06 Motor Leakage Inductance 0.0 to 40.0%
Determined by
C6-01 and o2-04
n
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. Parameter Name Setting Range Default
E2-07 Motor Iron-Core Saturation Coefficient 1 0.00 to 0.50 0.50
n
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 calculated and set to E2-08. This coefficient is used when operating with constant output.
No. Parameter Name Setting Range Default
E2-08 Motor Iron-Core Saturation Coefficient 2 E2-07 to 0.75 0.75
5.5 E: Motor Parameters
188
YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual

YASKAWA AC Drive-A1000 Specifications

General

Brand	YASKAWA
Model	AC Drive-A1000
Category	Controller
Language	English