Mitsubishi Electric FR-F740 EC Instruction Manual page 463

Parameter
% setting reference frequency (Pr. 390)
Setting of a reference frequency to the set frequency is available.
The setting value of Pr. 390 is 100% reference. The reference to the frequency command is con-
verted to the set frequency in the following formula.
● Set frequency = Pr. 390 x Speed scale (refer to page 6-317)
Pr. 390 % setting reference frequency
Set frequency written to the inverter
NOTES
The % setting reference frequency cannot be set at less than the minimum frequency reso-
lution of the inverter.
The set frequency is written to RAM.
The set frequency is applied at the writing of Speed scale. (The set frequency is not applied
at the setting of Pr. 390.)
FR-F700 EC
0.00Hz
0%
Set frequency (Speed scale)
Communication operation and setting
Fig. 6-172:
Relationship between Pr. 390 and the set
frequency
100.00%
I002308E
6 - 313