Increase The Starting Torque (Pr. 0) - Mitsubishi Electric FR-E700 Instruction Manual

Basic settings
5.1.3

Increase the starting torque (Pr. 0)

Set this parameter when the motor with a load does not rotate, an alarm OL is output, resulting in an
inverter trip due to OC1, etc.
Pr.
Name
No.
0
Torque boost
Example
When the motor with a load does 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.)
Pr. 0, Pr. 46
FR-E700 SC EC/ENE
Initial Value
FR-E720S-008SC to 050SC
FR-E740-016SC and 026SC
FR-E720S-080SC and 110SC
FR-E740-040SC to 095SC
FR-E740-120SC and 170SC
FR-E740-230SC and 300SC
Setting
range
Output frequency [Hz]
V/F V/F V/F
Setting
Description
Range
6%
Motor torque in the low-frequency range can be adjusted to the
4%
0–30%
load to increase the starting motor torque.
3%
2%
Fig. 5-3:
Relation between output frequency and output
voltage
Base
frequency
Simple mode parameter list
I001098E
5 - 5