Savch S3100A Series, Руководство пользователя

Страница: 68 / 157

64
Used to change the direction of the motor, its role is equivalent to changing the direction of motor rotation by
adjusting any two motor lines.
Note: After the parameters are initialized, the motor running direction will return to its original state. For occasions
where it is strictly forbidden to change the direction of the motor after system debugging, please use it with
caution.
00-10 Carrier frequency 
Factory setting
Type setting
Setting range 0.5kHz ～ 12.0kHz
This function adjusts the carrier frequency of the inverter. By adjusting the carrier frequency can reduce the motor
noise, avoid the resonance point of the mechanical system, reduce the line leakage current to the ground and
reduce the interference generated by the inverter.
The advantages of high carrier frequency: the current waveform is ideal, the current harmonics are less, and the
motor noise is small;
Disadvantages of high carrier frequency: increased switching loss, increased temperature rise of the inverter, and
affected the output capacity of the inverter. Under high carrier frequency, the inverter needs to be derated; at the
same time, the leakage current of the inverter increases, which Increased electromagnetic interference.
The effect of carrier frequency on the following performance:
Carrier frequency Low → High
Motor noise Large → Small
Output current waveform Bad → Good
Motor temperature rise High → Low
Inverter temperature rise Low → High
Leakage current Small → Large
External radiation interference Small → Large
The factory setting of carrier frequency is different according to different power models. The user can modify it as
needed, but it should be noted that if the carrier frequency is set higher than the factory value, it will cause the
temperature rise of the inverter radiator to increase. At this time, the user needs to derate the inverter, otherwise
the inverter will be in danger of overheating.
00-11
Parameter initialization
Factory setting 0
Setting range
0 No operation
1 Restore factory parameters, excluding motor parameters
2 Clear record information
1. Restore the factory settings, most of the inverter parameters are restored to the factory values, but the motor
parameters, frequency command decimal point (00-25), fault record information, cumulative running time
(08-11), cumulative power-on time (08-13), the cumulative power consumption (08-14) does not recover.
2. Clear record information
Clear the inverter fault record information, cumulative running time (08-11), cumulative power-on time (08-13),
cumulative power consumption (08-14).
Note: The parameter value automatically returns to 0 after the operation is completed.