EXPERT Standard Series User Manual
119
Note:
When F3.11 is set to 2 for rotation setting, the motor shaft shall be separated from the
load, and the motor is prohibited from performing rotation self-tuning with load.
Before starting the self-tuning, make sure that the motor is stopped, otherwise the
self-tuning cannot be performed normally.
In some occasions (such as the motor cannot be separated from the load, etc.), when
it is inconvenient to perform rotation setting or the user has low requirements on motor
control performance, static setting can be performed or not. In this case, please correctly
enter the nameplate parameters of the motor (F3.00~F3.05).
If self-tuning cannot be performed and the user has already known the accurate motor
parameters, in this case, the user shall correctly enter the motor nameplate parameters
(F3.00~F3.05), and then enter the values of the motor parameters, and multiply the set
values by the drive power (F3.06~F3.10). Make sure to set the parameters accurately.
If the self-tuning failed, there will be an E018 alarm, and F3.11 will clear automatically.
F3.12
Motor stability factor
0~25.5%
1.0%
This function acts in the VF mode, and is used to suppress the natural oscillation
generated when the drive cooperates with the motor. If the output current changes
repeatedly when operating at a constant load, properly adjusting this function code based
on the factory parameters can eliminate oscillation and make the motor operate stably.
F3.13
Torque boost limit
0.1%~30.0%
0.0%
F3.14
Torque boost cutoff point
0.00~F3.04
50.00 Hz
The torque boost is to compensate the output voltage of the drive when the drive is
running at low frequency. The torque boost can improve the low frequency characteristics
in V/F control mode. The torque boost shall not be set too large, if so, the efficiency of the
motor will decrease, and the excitation current of the motor will increase, heating the motor.
Torque boost cutoff frequency: At this frequency, the torque boost is valid, and is invalid
when the set frequency is exceeded.