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Specification of high-performance vector convertor
Upper frequency source
P0-11
Factory
default
Define the source of the upper frequencies. Upper limit frequency can be set from the digital (P0-12),
It can also be derived from the analog input channel. When setting the upper limit frequency analog input,
analog input setting's 100% corresponds to P0-12.
For example, when adopting torque control mode in the field of winding control, as to avoid
breaking the material and appearing "speed" phenomenon, you can use the analog set frequency caps.
When the inverter runs at the frequency upper limit, The inverter remains its running in the upper
frequency.
Upper frequency
P0-12
Setting range
Upper frequency offset
P0-13
Setting range
When the upper limit frequency is the analog or pulse setting, P0-13 is used as the set value of the
offset. The bias frequency and P0-11 set an upper limit frequency superimposed on the set value as the
final upper limit frequency.
Lower frequency
P0-14
Setting range
When frequency command below the lower frequency set by P0-14, the inverter can stop or lower
limit frequency operation or zero speed running. What kind of operation mode shall be selected can be
(setting frequency below the lower frequency operation mode) set by P8-14.
Carrier frequency
P0-15
Setting range
This function adjusts the carrier frequency of the inverter. By adjusting the carrier frequency, it can
reduce motor noise, avoid the resonance point of the mechanical system, and reduce interference and line-
to-ground leakage current of the inverter.
When the carrier frequency is low, output current higher harmonic component increases, motor loss
increases, and motor temperature increases. When the carrier frequency is high, motor loss decreases,
motor temperature decreases, But the inverter loss increases, inverter temperature increases and
interference increases.
Carrier frequency adjustment will affect the following properties:
Carrier frequency
Motor noise
Output current waveform
Temperature rise of motor
Temperature rise of convertor
Leakage current
External radiated interference
For different power inverters, carrier frequency's factory settings are different. Although users can
modify, but note: If the value of the carrier frequency is higher than the factory set, it will cause the
Factory default
0
P0-12 setting
1
AI1
2
AI2
3
AI3
4
PULSE setting
Communication given
5
Factory default
Upper frequency P0-14～ maximum frequency P0-10
Factory default
0.00Hz～ maximum frequency P0-10
Factory default
0.00Hz～ upper frequency P0-12
Factory default
Related to machine type
0.5kHz～16.0kHz
Low
Large
Bad
High
Low
Small
Small
- 73 -
50.00Hz
0.00Hz
0.00Hz
→ high
→ small
→ good
→ low
→ high
→ large
→ large
Parameter
0
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