80 H7 ASD Operation Manual
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 %.
Direct Access Number — F181
Parameter Type — Numerical
Factory Default — 100.0
Changeable During Run — Ye s
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 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.
Direct Access Number — F183
Parameter Type — Numerical
Factory Default — 32
Changeable During Run — Ye s
Minimum — 0
Maximum — 255
Custom V/f Five-Point Setting #1 Frequency
Program
⇒
Special Control Parameters
⇒
V/f Five-Point Setting
The Custom V/f Five-Point Setting #1 Frequency setting establishes the
frequency that is to be associated with the voltage setting of F191 (Custom V/f
Five-Point Setting #1 Voltage).
The V/f five-point settings (total 10) 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.
Custom V/f Curves may be useful in starting high inertia loads such as rotary
drum vacuum filters.
Direct Access Number — F190
Parameter Type — Numerical
Factory Default — 0.0
Changeable During Run — No
Minimum — 0.0
Maximum — 400
Units — Hz
F181 F190
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