Toshiba TOSVERT VF-AS3 Instruction Manual page 209

V/f 5-point setting
Output voltage (V)
<vLv: Base frequency
voltage 1>
<F199>
<F197>
<F195>
<F191>
<F193>
<vb>
• Set <vb: Manual torque boost 1> to approximately 0 to 3% of the base frequency voltage. If the
setting value is too large, it may impair the linearity between points.
• If the inclination of the set V/f is above 8.25%/Hz, Points setting alarm 2 "A-02" occurs.
Important
When "A-02" alarm occurs, internal V/f is limited to 8.25%/Hz.
9: Vector control 2 (speed / torque)
It is applied to torque control.
Vector control realize high-torque and high-precision stable operation in the speed range from
startup to base frequency.
It is applied to load transporting machinery and elevators that require high torque and machine tools
that require high precision.
• High starting torque can be obtained.
• It is effective when smooth stable operation from a low speed is required.
• The change of motor speed caused by load fluctuation is suppressed to realize high-precision
operation.
When <Pt> is "9", setting of motor parameters is required.
When the motor you are using is a 4P Toshiba premium efficiency motor which has the same capac-
ity as the inverter, there is basically no need to set the parameters.
In other cases, look at the motor name plate and set the following parameters.
• <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) Setting with <F400: Offline auto-tuning>
Set <F400: Offline auto-tuning> to "5".
For details, refer to [6. 23. 1].
* If an auto-tuning error occurs, set motor parameters individually by referring to [6. 23. 1]
"■Setting method 4: Manually setting motor parameter".
2) Manual setting
Set each motor constant.
For details, refer to [6. 23. 1].
VF4
VF3
VF1
VF2
0
<F190> <F192> <F194> <F196> <F198>
5-43
VF5
Output frequency (Hz)
<vL ：
Base frequency 1>
5. [Fundamental operation] How to use parameters
E6582062
3
4
5
9