66
5.2.8 V/F Pattern
F14: Volts per Hertz Pattern (Factory Default: 0: Linear)
Range:0: Linear
1: Reserved (DO NOT USE)
2: User Defined V/F
Depending on the applications, different Volt/Hertz patterns can be selected. In
User Defined V/F, various points of V/F ratios are programmed for the best output
result. Please contact the factory for more information.
LINEAR [Constant Torque Applications]
This pattern is best suited for Constant Torque applications like Hoist/Crane. This
Linear pattern has a V/F ratio that is constant throughout the entire frequency range
up to the drive base frequency.
Fig. 5.2.7: Linear V/F Diagram
Output volt.
100
%
Output freq.
Base frequency
USER V/F
The User Pattern can be used for special purpose applications. There are two V/F
points that can be programmed between the starting frequency and the base
frequency. See Fig. 5.2.8.
H2: User V/F Frequency 1 (Factory Default: 5.0 Hz.)
Range 0.0 - F9 Hz.
H3: User V/F Voltage 1 (Factory Default: 16 %)
Range 0 - 100 %
H4: User V/F Frequency 2 (Factory Default: 30.0 Hz.)
Range 0.0 - F9 Hz.
H5: User V/F Voltage 2 (Factory Default: 50 %)
Range 0 - 100 %
To Next Page
Loading...