Toshiba W7 DN-57442-006 Installation & Operation Manual page 89

Adjustable speed drives
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V/f Adjustment Coefficient
Program  Special  Special Parameters
This parameter may be used in the Constant Torque or the Variable
Torque modes only and should be adjusted gradually to improve the
application-specific torque requirements. The Torque Boost setting
(F016) may be adjusted to improve the low-frequency torque
performance.
Note:
The Torque Boost setting should be adjusted gradually before
attempting performance corrections using this parameter.
V/f Five-Point 1 Frequency
Program Special  V/f Five-Point Setting
The V/f Five-Point 1 Frequency setting establishes the frequency that is
to be associated with the voltage setting of
Voltage).
The V/f Five-Point settings define a custom volts per hertz relationship
for the startup output of the ASD.
To enable this function, set the V/f Pattern (F015) selection to Custom V/f
Curve.
V/f Curves may be useful in starting high inertia loads such as rotary
drum vacuum filters.
V/f Five-Point 1 Voltage
Program  Special  V/f Five-Point Setting
The V/f Five-Point 1 Voltage establishes the percentage of the output
voltage that is to be associated with the frequency setting of
Five-Point 1 Frequency).
See
F190
for additional information on custom V/f curves.
https://www.toshiba.com/tic/
Direct Access Parameter Information
W7B ASD Installation & Operation Manual
F191
(V/f Five-Point 1
F190
(V/f
F183-F191
Direct Access Number — F183
Parameter Type — Numerical
Factory Default — 32
Changeable During Run — Yes
Minimum — 0
Maximum — 255
Direct Access Number — F190
Parameter Type — Numerical
Factory Default — 0.0
Changeable During Run — No
Minimum — 0
Maximum — 299
Units — Hz
Direct Access Number — F191
Parameter Type — Numerical
Factory Default — 0.00
Changeable During Run — No
Minimum — 0.00
Maximum — 100.00
Units — %
79

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