YASKAWA T1000A, Техническое руководство, Страница: 168 / 517

5.5 E: Motor Parameters
168 YASKAWA ELECTRIC SIEP C710616 30B YASKAWA AC Drive T1000A Technical Manual
Setting the Motor Leakage Inductance
The motor leakage inductance set to E2-06 determines the amount of voltage drop relative to the motor rated voltage.
This value should be entered particularly for motors with a low degree of inductance, such as high-speed motors. As this
information is not listed on the motor nameplate, contact the motor manufacturer to find out the correct value for the
motor leakage inductance.
Setting the Motor Iron-Core Saturation Coefficient 1, 2
E2-07 and E2-08 are set when Auto-Tuning is performed.
Setting the Motor Mechanical Loss
The drive only requires this information when using Closed Loop Vector Control. The drive compensates for the degree
of mechanical loss with torque compensation. Although E2-09 rarely needs to be changed, adjustment may benefit the
following circumstances:
• When there is a large amount of torque loss due to motor bearing friction.
Setting the Motor Iron Loss for Torque Compensation
This value only needs to be set when using V/f Control. Enter this value in watts to E2-10. The drive uses this setting to
improve the precision of torque compensation.
u
E3: V/f Pattern for Motor 2
These parameters set the V/f pattern used for motor 2. Refer to Setting 16: Motor 2 selection on page 186 for details on
switching motors.
Note: As the function for switching between two motors cannot be used with a PM motor, the E3-
††
parameters will be hidden when
a PM motor control mode is selected (A1-02 = 5, 6, or 7).
n
E3-01: Motor 2 Control Mode Selection
Selects the control mode for motor 2. A control mode for PM motors cannot be selected for motor 2.
Note: 1. E3-01 dependant parameters are reset to the default settings when E3-01 is changed.
2. Protection from motor overload (oL1) is determined by L1-01, just as it is for motor 1.
Setting 0: V/f Control
Setting 1: V/f Control with PG
Setting 2: Open Loop Vector Control
Setting 3: Closed Loop Vector Control
Note: Protection from motor overload (oL1) is determined by L1-01, just as it is for motor 1.
n
E3-04 to E3-13
Parameters E3-04 through E3-13 set up the V/f pattern used for motor 2 as shown in Figure 5.45 .
Note: Certain E3-
††
parameters might not be visible depending on the control mode. Refer to Parameter Table on page 367 .
No. Parameter Name Setting Range Default
E3-01 Motor 2 Control Mode Selection 0 to 3 0
No.
<1> Values shown here are for 200 V class drives. Double the value when using a 400 V class drive.
<2> Default setting is determined by the control mode selected for motor 2 (E3-01).
<3> The drive sets this value when Auto-Tuning is performed (Rotational Auto-Tuning and Stationary Auto-Tuning 1, 2).
<4> Parameter ignored when E3-11 and E3-12 are set to 0.0.
Parameter Name Setting Range Default
E3-04
Motor 2 Max Output Frequency
40.0 to 400.0 Hz
<2>
E3-05
Motor 2 Max Voltage
0.0 to 255.0 V
<1> <1> <2>
E3-06
Motor 2 Base Frequency 0.0 to
[
E3-04
]
<2>
E3-07
Motor 2 Mid Output Frequency 0.0 to
[
E3-04
]
<2>
E3-08 Motor 2 Mid Output Frequency Voltage 0.0 to 255.0 V
<1> <1> <2>
E3-09 Motor 2 Minimum Output Frequency 0.0 to
[
E3-04
]
<2>
E3-10
Motor 2 Minimum Output Frequency Voltage
0.0 to 255.0 V
<1> <1> <2>
E3-11
Motor 2 Mid Output Frequency 2 0.0 to
[
E3-04
]
0.0 Hz
<4>
E3-12
Motor 2 Mid Output Frequency Voltage 2
0.0 to 255.0 V
<1>
0.0 V
<1> <3> <4>
E3-13
Motor 2 Base Voltage
0.0 to 255.0 V
<1>
0.0 V
<1> <3>