Mitsubishi Electric FR-D720S SC EC Instruction Manual page 191

Parameter
Set the minimum frequency
Use Pr. 2 "Minimum frequency" to set the lower limit of the output frequency.
NOTES
When Pr. 15 "Jog frequency" is equal to or less than Pr. 2, the Pr. 15 setting has precedence
over the Pr. 2 setting.
The output frequency is clamped by the Pr. 2 setting even the set frequency is lower than the
Pr. 2 setting (The frequency will not decrease to the Pr. 2 setting.)
b
CAUTION:
If the Pr. 2 setting is higher than the Pr. 13 "Starting frequency" value, note that the
motor will run at the set frequency according to the acceleration time setting by merely
switching the start signal on, without entry of the command frequency.
FR-D700 SC EC
Limit the output frequency
6 - 41