Toshiba Q9 Plus Bypass ASD Installation & Operation Manual page 202

7) Operating a permanent magnet motor
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
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 240V class, and 400V for 500V 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.
9) Cautions for vector control
Setting of V/F control mode selection  to  (PM motor control)
Setting of V/f control mode selection pt to 7 (V/f 5-point setting)
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)
~ (%) *
~ (Hz)
~ (%) *
~ (Hz)
~ (%) *
~ Hz
~ (%) *
~ (Hz)
~ (%) *
V/f 5-point setting
VF4
VF3
VF2
   
F-22
Default setting
VF5
Output frequency [Hz]

Base frequency 1
E6581611









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