Set the Motor Iron-Core Saturation Coefficient 1, 2
E2-07 and E2-08 are set when Auto-Tuning is performed.
Set the Motor Mechanical Loss
Only required in 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 be necessary in the following circumstances:
• When there is a large amount of torque loss due to motor bearing friction.
• When there is a large amount of torque loss in a fan or pump application.
Set the Motor Iron Loss for Torque Compensation
Only required 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 212 for details on
switching motors.
Note:
The function for switching between two motors cannot be used with a PM motor. E3-oo parameters are 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.
No. Parameter Name Setting Range Default
E3-01 Motor 2 Control Mode Selection 0 to 3 0
Note: L1-01 determines protection from motor overload (oL1) in motor 2 and 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
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 5.53.
Note:
Certain E3-oo parameters might not be visible depending on the control mode. Refer to Parameter List on page 379.
No. Parameter Name Setting Range Default
E3-04 Motor 2 Max Output Frequency 40.0 to 400.0 Hz
<1>
E3-05 Motor 2 Max Voltage 0.0 to 733.1
<1>
E3-06 Motor 2 Base Frequency 0.0 to [E3-04]
<1>
E3-07 Motor 2 Mid Output Frequency 0.0 to [E3-04]
<1>
E3-08 Motor 2 Mid Output Frequency Voltage 0.0 to 733.1
<1>
E3-09 Motor 2 Minimum Output Frequency 0.0 to [E3-04]
<1>
E3-10 Motor 2 Minimum Output Frequency Voltage 0.0 to 733.1
<1>
E3-11 Motor 2 Mid Output Frequency 2 0.0 to [E3-04]
0.0 Hz
<3>
E3-12 Motor 2 Mid Output Frequency Voltage 2 0.0 to 733.1
0.0 V
<2>
<3>
E3-13 Motor 2 Base Voltage 0.0 to 733.1
0.0 V
<2>
<1> Default setting is determined by the control mode selected for motor 2 (E3-01).
<2> The drive sets this value when Auto-Tuning is performed (Rotational Auto-Tuning and Stationary Auto-Tuning 1, 2).
<3> Parameter ignored when E3-11 and E3-12 are set to 0.0.
5.5 E: Motor Parameters
190
YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual
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