Fuji Electric frenic mini series, User Manual

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9-14
F04 Base Frequency
Refer to H50.
F05 Rated Voltage (at Base Frequency)
Refer to H51.
These function codes set the base frequency and the voltage at the base frequency
essentially required for running the motor properly. If combined with the related function
codes H50 and H51, these function codes may set data needed to drive the motor along the
non-linear V/f pattern.
The following description includes setting-up required for the non-linear V/f pattern.
Base frequency (F04)
Set the rated frequency printed on the nameplate located on the motor.
- Data setting range: 25.0 to 400.0 (Hz)
Rated voltage (at base frequency) (F05)
Set 0 or the rated voltage printed on the nameplate labeled on the motor.
- If 0 is set, the inverter supplies voltage equivalent to that of the power source of the
inverter at the base frequency. In this case, the output voltage will vary in line with any
variance in input voltage.
- If the data is set to anything other than 0, the inverter automatically keeps the output
voltage constant in line with the setting. When any of the automatic torque boost settings,
automatic energy saving or slip compensation is active, the voltage settings should be
equal to the rating of the motor.
If the rated voltage of the motor is set to F05, the motor efficiency will be
improved better than that when 0 is set. Therefore, when brakes are applied to the
motor, energy loss decreases and the motor regenerates larger braking energy.
Note that the allowable power consumption capacity of the inverter for braking
energy is limited by the specifications. It may be necessary to increase
deceleration time or use an external braking resistor.
Set F05 to: The inverter will:
0
Output voltage in line with variance in input voltage. (The AVR is disabled.
AVR: Automatic Voltage Regulator)
80 to 240 (V) Output voltage AVR-controlled for 200 V class motors.
160 to 500 (V) Output voltage AVR-controlled for 400 V class motors.
Arbitrary point on curvilinear V/f pattern for frequency (H50)
Sets the non-linear V/f pattern for frequency component.
- Data setting range: 0.0 to 400.0 Hz
(Setting 0.0 to H50 disables the non-linear V/f pattern operation.)
Arbitrary point on curvilinear V/f pattern for voltage (H51)
Sets the non-linear V/f pattern for voltage component.
Set H51 to: The inverter will:
0 to 240 (V) Output the voltage AVR-controlled for 200 V class motors.
0 to 500 (V) Output the voltage AVR-controlled for 400 V class motors.
If the voltage at base frequency (F05) is set to 0, the data settings of function codes H50 and
H51 will be ignored.