Contents

Motor and V/f Pattern Setup
Setting Motor Parameters
In vector control method, the motor parameters are set automatically during autotuning (refer to page 5-51,
Autotuning. If autotuning does not complete normally, set them manually.
•Related Parameters
Parameter
No.
Name
Factory
Setting
Change
during
Operation
V/f
Control Methods
Open
Loop
Vector
Closed
Loop
Vector
E2-01 Motor rated current 14.00 A * No Q Q Q
E2-02 Motor rated slip 2.73 Hz * No A A A
E2-03 Motor no-load current 4.50 A * No A A A
E2-04 Number of motor poles (Number of poles) 4 poles No No Q Q
E2-05 Motor line-to-line resistance 0.771 Ω * No A A A
E2-06 Motor leak inductance 19.6% No No A A
E2-07 Motor iron saturation coefficient 1 0.50 No No A A
E2-08 Motor iron saturation coefficient 2 0.75 No No A A
E2-10 Motor iron loss for torque compensation 112 W * No A No No
E2-11 Motor rated output power 3.700 * No Q Q Q
E2-12 Motor iron saturation coefficient 3 1.30 No No A A
Note All factory-set parameters are for a Yaskawa standard 4-pole motor.
* The factory settings depend on Inverter capacity (the values shown are for a 400 V Class Inverter for 3.7 kW).
•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 rated slip = Motor rated frequency (Hz) –
Rated speed (rpm) x No. of motor poles
120
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 Yaskawa 4-pole motor.
Number of Motor Poles Setting (E2-04)
E2-04 is displayed only when Closed Loop Vector control method is selected. 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 perform
tuning, consult the motor manufacturer for the line-to-line resistance value. Calculate the resistance from
5-50