Increase The Starting Torque (Pr. 0) - Mitsubishi Electric FR-D720S SC EC 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 look-
ing at the motor movement. The guideline is for about 10% change at the greatest.
Pr. 0, Pr. 46
FR-D700 SC EC
Initial Value
FR-D720S-008SC to
042SC
FR-D740-012SC and
022SC
FR-D720S-070SC and
100SC
FR-D740-036SC to
080SC
FR-D740-120SC and
160SC
Setting
range
Output frequency [Hz]
V/F V/F V/F
Setting
Description
Range
6%
Motor torque in the low-frequency range can be
0–30% adjusted to the load to increase the starting motor
4%
torque.
3%
Fig. 5-3:
Relation between output frequency and output
voltage
Base
frequency
Simple mode parameter list
I001098E
5 - 5