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3-20 Operation
53-Control Base Frequency - Sets the point on the V/Hz profile
where the output voltage becomes a constant value with
increasing output frequency. The base frequency point defines
the output frequency where the motor goes from constant torque
(or variable torque) to constant horsepower operation. The
range of adjustment is from 26 to 960 HZ. The factory setting is
60 Hz.
59-Max. Output Volts - Sets the maximum output voltage
available to the motor from the control. The maximum output
voltage of the inverter can be reduced from the line input voltage
to facilitate the use of a motor with an input voltage that is less
than the input voltage to the inverter.
Note: In some cases the Max. Output Volts along with the
Control Base Frequency adjustment can be manipulated
to provide a wider constant torque or wider constant
horsepower speed range than is normally available from
the motor. The Max Output Volts and Control Base
Frequency parameters are normally set to the motors’
rated voltage and rated frequency respectively. Caution
should be exercised if any other values are set into these
parameters. Incorrect values may cause the motor to run
at extreme temperatures or fail prematurely.
61-Load Torque Limit FWD - Sets the maximum amount of
current that is supplied to the motor under a motoring forward
condition before Torque Limiting takes affect. The range of
adjustment is 30- 150% of parameter 03-Rated Current. The
factory setting is 150%.