YASKAWA V1000 Series Installation & Start-Up Manual page 148

4.4 Basic Parameter Adjustments
Setting Motor Parameters Manually
■
The following table provides instructions on how to set motor parameters.
No. Parameter Name
E2-01 Motor Rated Current
E2-02 Motor Rated Slip
E2-03 Motor No-Load Current
E2-04 Number of Motor Poles
Motor Line-to-Line
E2-05
Resistance
Motor Leakage
E2-06
Inductance
E2-07 Motor Iron-Core
Saturation Coefficient 1
<1>
E2-08 Motor Iron-Core
Saturation Coefficient 2
<1>
148
YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07)
Setting Method
Sets the motor nameplate full load current in amperes (A). This
value is automatically set during Auto-Tuning.
Sets the motor rated slip in Hertz (Hz). This value is automatically
set during rotational Auto-Tuning.
Motor rated slip = motor rated frequency [Hz] - motor r/min
/ no. of motor poles / 120.
Sets the magnetizing current of the motor in amperes (A), often
referred to as the no-lead current. as a percentage of full load
amps (E2-01). This value is automatically set during rotational
Auto-Tuning.
Contact the motor manufacturer to get the no-load current. This
information is not usually written on the motor nameplate.
The default no-load current is for a Yaskawa 4-pole motor.
Sets the number of motor poles. This value is automatically set
during Auto-Tuning:
Poles = 120 x motor rated frequency/ synchronous rpm
Contact the motor manufacturer to obtain the number of motor
poles when in doubt.
When regular Auto-Tuning is not possible, contact the motor
manufacturer to find out the resistance between lines (T-lead to T-
lead). If using the Motor Test Report, calculate resistance between
lines as follows:
E-Type Insulation: Test Report value for line resistance at
75°C at 0.92 ohms
B-Type Insulation: Test Report value for line resistance at
75°C at 0.92 ohms
F-Type Insulation: Test Report value for line resistance at 115°C
at 0.87 ohms
Set the amount of voltage drop due to motor leakage inductance at
base frequency and motor rated current.This value should be set
when using a high-speed motor or another type of motor that has a
relatively small amount of inductance. Contact the motor
manufacturer to get the motor leakage inductance, as this
information is not usually written on the motor nameplate.
Sets the motor iron saturation coefficient at 50% of magnetic flux.
This value is automatically set during rotational Auto-Tuning.
Sets the motor iron saturation coefficient at 75% of magnetic flux.
This value is automatically set during rotational Auto-Tuning.
Page
358
359
359
359
359
359
359
359