YASKAWA V1000 Series

4.4 Basic Parameter Adjustments
148 YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07)
■ Setting Motor Parameters Manually
The following table provides instructions on how to set motor parameters.
No. Parameter Name Setting Method Page
E2-01 Motor Rated Current
Sets the motor nameplate full load current in amperes (A). This
value is automatically set during Auto-Tuning.
358
E2-02 Motor Rated Slip
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.
359
E2-03 Motor No-Load Current
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.
359
E2-04 Number of Motor Poles
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.
359
E2-05
Motor Line-to-Line
Resistance
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
359
E2-06
Motor Leakage
Inductance
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.
359
E2-07
<1>
Motor Iron-Core
Saturation Coefficient 1
Sets the motor iron saturation coefficient at 50% of magnetic flux.
This value is automatically set during rotational Auto-Tuning.
359
E2-08
<1>
Motor Iron-Core
Saturation Coefficient 2
Sets the motor iron saturation coefficient at 75% of magnetic flux.
This value is automatically set during rotational Auto-Tuning.
359