For 230V models, the default is 10.0 V; for 460V models, the default is 20.0 V.
Sets the minimum start-up voltage of V/F curve.
The settings for Pr.01.01–Pr.01.06 must meet the condition of Pr.01.02 ≥ Pr.01.04 ≥ Pr.01.06
and Pr.01.01 ≥ Pr.01.03 ≥ Pr.01.05.
This parameter must be equal to or greater than the Output Frequency Lower Limit (Pr.01.08).
The Maximum Output Frequency (Pr.01.00) is equal to 100%.
The Output Frequency Upper Limit = (01.00 × 01.07) ÷ 100
Calculation: The Output Frequency Lower Limit = (01.00 × 01.08) ÷ 100
Use the output frequency upper and lower limit settings to prevent operator misuse, overheating
caused by the motor’s operating at a too low frequency, or mechanical wear due to a too high
speed.
If the output frequency upper limit setting is 50 Hz and the frequency setting is 60 Hz, the
maximum output frequency is 50 Hz.
If the output frequency lower limit setting is 10 Hz and the minimum output frequency setting
(Pr.01-07) is 1.5 Hz, then the drive operates at 10 Hz when the Frequency command is higher
than Pr.01-07 but lower than 10 Hz. If the Frequency command is lower than Pr.01-05, the drive
is in ready status without output.
If the frequency output upper limit is 60 Hz and the frequency setting is also 60 Hz, the