Motor #4 Max Output Voltage; Motor #4 Torque Boost - Toshiba G7 Operation Manual

F179

Motor #4 Max Output Voltage

Program ⇒ Motor Parameters ⇒ Motor Set #4
The Motor #3 Maximum Output Voltage is the Motor #4 output voltage at
the Base Frequency (F178). Regardless of the programmed value, the output
voltage cannot be higher than the input voltage.
The actual output voltage will be influenced by the input voltage of the ASD
and the Supply Voltage Compensation setting (F307).
This parameter is used only when the parameters for motor set #4 are
configured and selected. Motor set #4 may be selected by a properly configured
input terminal.

Motor #4 Torque Boost

Program ⇒ Motor Parameters ⇒ Motor Set #4
The Motor #4 Torque Boost function is used to increase the low frequency
torque for high inertia loads by increasing the output voltage at frequencies
below ½ of the #4 Base Frequency setting (F178).
See parameter F016 (Motor #1 Torque Boost) for an explanation of torque
boost.
This parameter is used only when the parameters for motor set #4 are
configured and selected. Motor set #4 may be selected by a properly configured
input terminal.
Electronic Thermal Protection #4
Program ⇒ Motor Parameters ⇒ Motor Set #4
The Motor #4 Electronic Thermal Protection parameter specifies the motor
overload current level for motor set #4. This value is entered as either a
percentage of the full load rating of the ASD or as the FLA of the motor.
The unit of measurement for this parameter may be set to Amps (V/A) or it
may be set as a percentage of the ASD rating. The name-plated FLA of the
motor may be entered directly when Amps is selected as the unit of
measurement (see F701 to change the display unit).
Electronic Thermal Protection settings (#1 – #4) will be displayed in Amps if
the EOI display units are set to V/A rather than %.
V/f Adjustment Coefficient
Program ⇒ Special Control Parameters ⇒ Special Parameters ⇒ V/f
Adjustment Coefficient
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.
88
Direct Access Number — F179
Parameter Type — Numerical
Factory Default — (ASD-dependent)
Changeable During Run — Yes
Minimum — 0.0
Maximum — 600.0
Units — Volts
Direct Access Number — F180
Parameter Type — Numerical
Factory Default — (ASD-dependent)
Changeable During Run — Yes
Minimum — 0.0
Maximum — 30.0
Units — %
Direct Access Number — F181
Parameter Type — Numerical
Factory Default — 100.0
Changeable During Run — Yes
Minimum — 10.0
Maximum — 100.0
Units — %
Direct Access Number — F183
Parameter Type — Numerical
Factory Default — 32
Changeable During Run — Yes
Minimum — 0
Maximum — 255
G7 ASD Operation Manual
F183