Mitsubishi Electric FR-A700 Instruction Manual page 328

Adjust the output torque of the motor (current)
Starting torque adjustment
On the assumption that Pr. 19 "Base frequency voltage" is 100%, set the output voltage at 0Hz
in % to Pr. 0 (Pr. 46, Pr. 112).
Setting range Pr. 0, Pr. 46, Pr. 112
b
CAUTION:
Adjust the parameter little by little (about 0.5%), and check the motor status each time.
If the setting is too large, the motor will overheat. The guideline is about 10% at the
greatest.
The requirements of the motor manufacturer must also be observed.
Set multiple base frequencies (RT signal, X9 signal, Pr. 46, Pr. 112)
Use the second (third) torque boost when changing the torque boost according to application or
when using multiple motors by switching between them by one inverter.
Pr. 46 "Second torque boost" is made valid when the RT signal turns on. The RT signal is
assigned to the RT terminal by any of Pr. 178 to Pr. 189 "Input terminal function selection".
Pr. 112 "Third torque boost" is valid when the X9 signal is on. For the terminal used for X9 signal
input, set "9" in any of Pr. 178 to Pr. 189 "Input terminal function selection" to assign the X9 signal
function.
6 - 148
[ % ]
100
50
30
Fig. 6-45:
Relationship between output frequency and
output voltage
fB
Parameter
I000001C