Pr. 0 Torque Boost - Mitsubishi FREQROL-E700 Manual

3.5.4 Pr. 0 Torque boost

This parameter is used to correct voltage drops in low-frequency ranges and improve decreases in motor torque
during low speeds.
• Motor torque during low-frequency ranges can be adjusted in accordance with load and can be increased during startup.
Pr. Name
0 Torque boost
1. Starting torque adjustment
● On the assumption that Pr. 19 Base frequency
voltage is 100%, set the output voltage at 0Hz in %
to Pr. 0.
● 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.
Screen at power-ON
1
The monitor display appears.
Changing the operation mode
2
Press to choose the PU operation mode. The [PU] indicator turns on.
Parameter setting mode
3
Press to choose the parameter setting mode.
Selecting the parameter number
4
Turn until
Reading settings
5
Press to read the present setting. "
Changing the setting
6
Turn to change the setting to "
Parameter settings
7
Press to finalize the setting.
The parameter number and setting flashes.
* Configure parameter settings in accordance with your environment.
Initial value
0.1K to 0.75K 6%
1.5K to 3.7K 4%
5.5K, 7.5K 3%
11K, 15K 2%
Operation example
(Pr. 0) is selected.
" (6.0% (initial value)) appears.
" (3.0%).
3-11
Setting range
0 to 30% Set the output voltage at 0Hz as %.
100%
Pr.0 Setting range
0
Output frequency (Hz)
Description
Base
frequency
3