Toshiba TOSVERT VF-AS3 Instruction Manual page 210

10: PG feedback control
Vector control is performed by using speed feedback signals from the motor.
Attach the PG feedback option to the inverter. Use a motor with speed sensor (encoder) and
connect signals from the encoder to the PG feedback option.
In the following cases, use <Pt> = "11: PG feedback vector control (speed / torque)"
• To perform torque control
• To perform speed control that requires high precision
• When low-speed operation (with motor slip frequency or less) of regeneration is required
When <Pt> is "10", setting of motor parameters is required.
Look at the motor name plate and set the following parameters first.
• <vL: Base frequency 1> (Rated frequency)
• <vLv: Base frequency voltage 1> (Rated voltage)
• <F405: Motor rated capacity>
4
• <F415: Motor rated current>
• <F417: Motor rated speed>
5
Two parameter setting methods are provided.
1) Automatic setting with auto-tuning
Set <F400: Offline auto-tuning> to "5".
For details, refer to [6. 23. 1].
2) Manual setting
Set each motor constant.
For details, refer to "Digital Encoder Instruction Manual" (E6582148).
11: PG feedback vector control (speed / torque)
9
Vector control is performed by using feedback signals from the motor. It is applied to high-precision
speed control and torque control.
Attach the PG feedback option to the inverter. Use a motor with speed sensor (encoder) and
connect signals from the encoder to the PG feedback option.
Torque control is performed based on the torque command, so the motor speed depends on the
relationship between the load torque and the motor generated torque.
.
When <Pt> is "11", setting of motor parameters is required.
Look at the motor name plate and set the following parameters first.
• <vL: Base frequency 1> (Rated frequency)
• <vLv: Base frequency voltage 1> (Rated voltage)
• <F405: Motor rated capacity>
• <F415: Motor rated current>
• <F417: Motor rated speed>
Two parameter setting methods are provided.
1) Automatic setting with auto-tuning
Set <F400: Offline auto-tuning> to "5".
For details, refer to [6. 23. 1].
2) Manual setting
Set each motor constant.
For details, refer to "Digital Encoder Instruction Manual" (E6582148).
5. [Fundamental operation] How to use parameters
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