88 G7 ASD Operation Manual
Motor #4 Max Output Voltage
Program ⇒ Motor Parameters ⇒ Motor Set #4
The Motor #3 Maximum Output Vo ltage 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 se tting (F307).
This parameter is use d only when the para meters for motor set #4 are
configured and selected. Motor set #4 m ay be selected by a properly configured
input terminal.
Direct Access Number — F179
Parameter Type — Numerical
Factory Default — (ASD-dependent)
Changeable During Run — Yes
Minimum — 0.0
Maximum — 600.0
Units — Volts
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 use d only when the para meters for motor set #4 are
configured and selected. Motor set #4 may be selected by a properly configured
input terminal.
Direct Access Number — F180
Parameter Type — Numerical
Factory Default — (ASD-dependent)
Changeable During Run — Yes
Minimum — 0.0
Maximum — 30.0
Units — %
Electronic Thermal Protection #4
Program ⇒ Motor Parameters ⇒ Motor Set #4
The Motor #4 Electronic Thermal Protecti on parameter specifies the motor
overload current level for motor set #4. Thi s 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 m ay 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 Protec tion settings (#1 – #4) will be displayed in Amps if
the EOI display units are set to V/A rather than %.
Direct Access Number — F181
Parameter Type — Numerical
Factory Default — 100.0
Changeable During Run — Yes
Minimum — 10.0
Maximum — 100.0
Units — %
V/f Adjustment Coefficient
Program ⇒ Special Control Parameters ⇒ Special Parameters ⇒ V/f
Adjustment Coefficient
This parameter may be used in th e Constant Torque or the Variable Torque
modes only and should be adjusted gradually to improve the application-
specific torque requirement s. The Torque Boos t 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.
Direct Access Number — F183
Parameter Type — Numerical
Factory Default ��� 32
Changeable During Run — Yes
Minimum — 0
Maximum — 255
F179 F183