Toshiba Tosvert VF-S15 Instruction Manual page 133

7) Operating a permanent magnet motor
Setting of V/F control mode selection  to  (PM motor control)
Permanent magnet motors (PM motors) that are light, small in size and highly efficient, as compared to
induction motors, can be operated in sensor-less operation mode.
Note that this feature can be used only for specific motors. For more information, contact your Toshiba
distributor.
8) Setting of V/f characteristic arbitrarily
Setting of V/f control mode selection pt to 7 (V/f 5-point setting)
In this mode, the base frequency and the base frequency voltage for the V/f control need to be set to operate
the motor while switching a maximum of 5 different V/f characteristics.
[Parameter setting]
Title





6





* 100% value is 200V for 200V class, and 400V for 400V class.
[V]/[%]
Note 1: Restrict the value of torque to boost (vb) to 3% or so. Boosting the torque too much may impair the
linearity between points.
Note 2: Please note if the inclination of each V/f is too high (exceeding 8.25%/Hz), a-02 (Points setting alarm 2)
will occur.
Function
V/f 5-point setting VF1 frequency
V/f 5-point setting VF1 voltage
V/f 5-point setting VF2 frequency
V/f 5-point setting VF2 voltage
V/f 5-point setting VF3 frequency
V/f 5-point setting VF3 voltage
V/f 5-point setting VF4 frequency
V/f 5-point setting VF4 voltage
V/f 5-point setting VF5 frequency
V/f 5-point setting VF5 voltage
Base frequency
voltage 1 



VF1



0

Adjustment range
~ (Hz)
~ (%) / (V) *
~ (Hz)
~ (%) / (V) *
~ (Hz)
~ (%) / (V) *
~ Hz
~ (%) / (V) *
~ (Hz)
~ (%) / (V) *
V/f 5-point setting
VF5
VF4
VF3
VF2
   
F-22
E6581926
Default setting










Output frequency [Hz]

Base frequency 1