5.3 Description of Function Codes 5.3.1 F codes (Fundamental functions)
Base frequency 1, rated voltage at base frequency 1
Maximum output voltage 1
Related function codes: H50, H51 Non-linear V/f 1 (Frequency, Voltage)
H52, H53 Non-linear V/f 2 (Frequency, Voltage)
H65, H66 Non-linear V/f 3 (Frequency, Voltage)
Set the base frequency and base frequency voltage that are essential to operation of the motor. By combining
related function codes H50 to H53, H65, and H66, it is possible to set non-linear V/f pattern (weak or strong voltage
by arbitrary point) and perform setting of V/f characteristics that is suitable for the load.
Impedance of the motor becomes larger with high frequency, and when output voltage becomes less, output torque
may be reduced. In order to prevent this, increase the voltage at high frequency by setting function code F06
(maximum output voltage 1). However, it is not possible to output voltage at or higher than the input power voltage
of the inverter.
Enabled only when V/f control selected
(F42 = 0 and F37 = 0, 1)
Enabled only when V/f control selected
(F42 = 0 and F37 = 0, 1)
<Setting example>
Normal V/f pattern setting
Non-linear V/f pattern setting (3 points)
Rated voltage at base frequency
Maximum output frequency 1
Rated voltage at base frequency
Non-linear V/f pattern 3 (voltage)
Non-linear V/f pattern 2 (voltage)
Non-linear V/f pattern 1 (voltage)
Non-linear V/f
pattern 1
(frequency)
Non-linear V/f
pattern 2
(frequency)
Non-linear
V/f pattern 3
(frequency)
To Next Page
Loading...
