6-112
6
Manual Setting of the Motor Parameters
Motor Rated Current Setting (E2-01)
Set E2-01 to the rated current value on the motor nameplate.
Motor Rated Slip Setting (E2-02)
Set E2-02 to the motor rated slip calculated from the number of rated rotations on the motor nameplate.
Motor No-Load Current Setting (E2-03)
Set E2-03 to the motor no-load current at the rated voltage and rated frequency. Normally, the motor no-load
current is not written on the motor nameplate. Consult the motor manufacturer.
Factory setting is the no-load current value for a standard 4-pole motor.
Number of Motor Poles Setting (E2-04)
E2-04 is displayed in V/f control with PG, Open Loop and Closed Loop Vector mode only. Set the number of
motor poles as written on the motor nameplate.
Motor Line-to-Line Resistance Setting (E2-05)
E2-05 is set automatically when performing motor line-to-line resistance autotuning. When you cannot per-
form tuning, consult the motor manufacturer for the line-to-line resistance value. Calculate the resistance from
the line-to-line resistance value in the motor test report using the following formula, and then make the setting
accordingly.
• E-type insulation: [Line-to line resistance (Ω) at 75°C of test report] × 0.92 (Ω)
• B-type insulation: [Line-to line resistance (Ω) at 75°C of test repor]t × 0.92 (Ω)
• F-type insulation: [Line-to line resistance (Ω) at 115°C of test report] × 0.87 (Ω)
Motor Leak Inductance Setting (E2-06)
Set the amount of voltage drop due to motor leakage inductance in E2-06 as percentage of the motor rated
voltage. Make this setting when using high-speed motors because the standard value will be too high. (Nor-
mally, high speed motors have a low inductance compared to standard motors.) If the inductance is not written
on the motor nameplate, consult the motor manufacturer.
Motor Iron Saturation Coefficients 1 and 2 Settings (E2-07 and E2-08)
E2-07 and E2-08 are set automatically during rotating autotuning.
Motor Iron Losses (E2-09)
Sets the motor’s mechanical losses in percent of the motor rated power. Normally it is not necessary to change
this setting as the mechanical losses of a motor can be ingored.
Motor Iron Loss for Torque Compensation Setting (E2-10)
E2-10 is displayed only in V/f control method and can be set to increase the torque compensation accuracy.
The motor iron loss has to be set in kW.
Motor Rated Slip Motor rated frequency (Hz)
Rated Speed (rpm) No. of motor poles×
120
-------------------------------------------------------------------------------------------------–=