P4-10/P4-11 V/f characteristic settings
The voltage/frequency characteristic curve determines the voltage level applied to the motor at the respective specified frequency. You can change the U/f characteristic as needed using parameters P4-10 and P4-11.
You can set parameter P4-10 to any frequency between 0 and the base frequency (P1-09). It represents the frequency at which the percentage adjustment level set in P4-11 is used. This function is only active when P4‑01 = 2.
[1] | Normal U/f characteristic |
[2] | Adjusted U/f characteristic (example 1) |
[3] | Adjusted U/f characteristic (example 2) |
P1-07 = | Rated motor voltage |
P1-09 = | Rated motor frequency |
P1-11 = | Boost (x% of P1-07) |
P4-10 = | Frequency value of the U/f characteristic curve adjustment |
P4-11 = | Voltage value of the U/f characteristic curve adjustment |
