Mitsubishi Electronics FR-A701 ユーザーズマニュアル

Set this parameter when "the motor with a load will not rotate", "an alarm [OL] is output, resulting in an inverter
trip due to [OC1], etc.

7.5K or lower

3%

0 to 30%

Motor torque in the low-frequency range can be 
adjusted to the load to increase the starting motor 
torque.

11K or higher

2%

Changing example

When the motor with a load will not rotate, 
increase the Pr. 0 value 1% by 1% unit by looking at 
the motor movement. (The guideline is for about 10% 
change at the greatest.)

· A too large setting may cause the motor to overheat, resulting in an overcurrent trip (OL (overcurrent alarm) then E.OC1

(overcurrent trip during acceleration)), overload trip (E.THM (motor overload trip), and E.THT (inverter overload trip)). 
(When a fault occurs, release the start command, and decrease the Pr. 0 setting 1% by 1% to reset.)

If the inverter still does not operate properly after the above measures, adjust Pr. 80, Pr. 81 (Advanced magnetic flux
vector control), Pr.800 (Real sensorless vector control). The Pr.0 setting is invalid under Advanced magnetic flux
vector control, Real sensorless vector control and vector control. (Refer to Chapter 4 of 

Output 
voltage

Setting 
range

Base 
frequency

0

100%

Output 
frequency
(Hz)

1.

Screen at power-ON

   The monitor display appears.

Display

Operation

The initial value
differs according
to the capacity.

3.

Press        to choose the parameter 

     setting mode.

4.

Pr. 0) appears.

7.

Press        to set.

PU indicator is lit.

2.

Press         to choose PU operation mode.

· Press         to show the setting again.

· Press        twice to show the next parameter.

· By turning        , you can read another parameter.

The parameter 
number read
previously appears.

6.

Turn         to change it to the set value

     "      ".

5.

Press         to read the currently set value.

     "      "(initial value is 3% for the 5.5K)

     appears.