Mitsubishi Electric FR-F740 EC Instruction Manual page 358

Frequency setting by analog input (terminals 1, 2 and 4)
Since turning off the start command clears the retained frequency, the inverter does not operate
at the retained frequency even if restarted.
Set frequency
50Hz
Current input decrease
detection
* When Pr. 573 = 1, input decrease is detected (LF signal output) even if the analog input value
to bias frequency of terminal 2 or terminal 4 is set to 2mA or less using C2 (Pr. 902) or C5 (Pr.
904) and the value is not as bias frequency settings.
6 - 208
When C3 (C6) = 0%
Analog
input
Normal use range
Fig. 6-125:
4mA input check of current input
Parameter
I001196E