FujiFilm Frenic-Mini Instruction Manual page 88

F03
Maximum Frequency
Sets the maximum frequency to drive the motor. Setting the frequency out of the
range rated for the equipment driven by the inverter may cause damage or a dan-
gerous situation. Set a maximum frequency appropriate for the equipment. For
high-speed motors, it is recommended that the carrier frequency be set to 15 kHz.
The inverter can easily set high-speed operation. When changing the speed setting,
carefully check the specifications of motors or equipment beforehand.
Otherwise injuries could occur.
F04
Base Frequency
F05
Rated Voltage (at Base Frequency)
H50
Non-linear V/f Pattern (Frequency)
H51
Non-linear V/f Pattern (Voltage)
These function codes set the base frequency and the voltage at the base fre-
quency 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 pat-
tern.
Base frequency (F04)
Set the rated frequency printed on the nameplate located on the motor.
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.
Non-linear V/f pattern for frequency (H50)
Sets the non-linear V/f pattern for frequency component.
(Setting 0.0 to H50 disables the non-linear V/f pattern operation.)
If F05 is set to match the rated voltage of the motor, motor efficiency will
be better than that it is set to 0. Therefore, when brakes are applied to
the motor, energy loss decreases and the motor regenerates larger
braking energy, which can easily cause the overvoltage protection func-
OU
tion ( n where n=1 to 3) to be activated. Note that the allowable power
consumption capacity of the inverter for braking energy is limited by the
specifications. If the overvoltage protection function is activated, it may
be necessary to increase deceleration time or use an external braking
resistor.
5-15