HX7+ ASD Installation and Operation Manual 97
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 keypad 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 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.
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 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 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 — 299
Units — Hz
F181 F190
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