Increase The Starting Torque (Pr. 0) - Mitsubishi Electric FR-F740 EC Instruction Manual

Basic settings
5.2

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-F700 EC
00023
00038 to 00083
00126/00170
00250 to 00770
00930/01160
01800 or more
Setting
range
Output
frequency [Hz]
Setting
Initial Value
Range
6%
4%
3%
0–30%
2%
1.5%
1%
Fig. 5-1:
Relation between output frequency and output
voltage
Base
frequency
Increase the starting torque (Pr. 0)
Description
Motor torque in the low-frequency range can be
adjusted to the load to increase the starting motor
torque.
I001098E
5 - 3