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Specification of high-performance vector convertor
A5-01
It is only valid for VF control. Synchronous modulation means converting the carrier frequency as the output frequency
varies linearly, to ensure both the ratio (carrier ratio) unchanged, generally at higher output frequencies to use, in favor of
the quality of the output voltage.
In the lower output frequency (100Hz or less), generally you do not need synchronous modulation, because the ratio of the
carrier frequency and the output frequency is relatively high, some of the more obvious advantages of asynchronous
modulation.
Running frequency higher than 85Hz, synchronous modulation to take effect, the frequency of the following fixed
asynchronous modulation mode.
A5-02
Generally do not need to modify this parameter, only when the output voltage waveform quality have special requirements,
or other abnormal motor oscillation, you need to try to switch to select different compensation models.
Mode 2 is recommended to use high-power compensation.
A5-03
Set random PWM, the motor can be monotonous shrill voice becomes softer and can help reduce the external
electromagnetic interference.
When set to 0 random PWM depth, random PWM invalid. Different depth adjustment random PWM will get different
results.
A5-04
Enable fast current limiting function can reduce the maximum drive overcurrent fault occurs. The drive to ensure
uninterrupted operation. If the drive for a long period in the fast current limit, the inverter may overheat and other damage,
and this is not allowed.
So long drive quickly when the alarm limit fault Err40, indicating that the inverter overload and downtime.
A5-05
Current detection compensation for setting inverter control set too high may cause performance degradation. Generally do
not need to modify.
A5-06
PWM modulation
Setting range
Dead compensation mode selection
Setting range
Random PWM Depth
Setting range
1～10
Enable fast limiting
Setting range
Current detection compensation
Setting range
Brown-point setting
Setting range
Factory default
0
1
Factory default
0
1
2
Factory default
0
PWM carrier frequency random depth
Factory default
0
1
Factory default
Factory default
- 144 -
Parameter description
Asynchronous modulation
Synchronous modulation
Without compensation
Compensation Mode 1
Compensation Mode 2
Random PWM invalid
Not enable
Enable
0～100
60.0%～140.0%
0
1
0
1
5
100.0%
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