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Chapter 5 Detailed Function Introductions
P2.05 Frequency departure setting
Notes:
Prevent analog setting fluctuation leading joggling of output frequency. When the frequency setting source is
terminal AI or pulse input, it takes effect only when the set frequency changes and the variation range exceeds
the set range.
P2.06 carrier frequency adjustment
selection
0: No automatic adjustment
Notes:
The carrier frequency is the upper limit of the carrier frequency in vector control mode or when there is no
automatic adjustment.
Option 1: This function option can adjust the carrier frequency by automatically synthesizing the load and
temperature of the inverter so as to regulate the width of the frequency domain of the noise of the motor or
reduce the probability of the inverter issuing overheat alarm.
P2.07 Carrier frequency upper limit
P2.08 Carrier frequency lower limit
Notes:
In order to obtain better control characteristics, it is suggested that the ratio of the carrier frequency and the
maximum operating frequency of the inverter is not less than 36.
To reduce the noise, higher carrier frequency can be selected; if the inverter is not required to be absolutely
quiet during running, lower carrier frequency can be used to reduce loss of the inverter and intensity of
radio-frequency radiation.
If the used carrier frequency is greater than the factory set value, then the rated continuous-service current of
the inverter will be reduced.
P2.09 Jump frequency 1
P2.10 Jump frequency 2
P2.11 Jump frequency 3
P2.12 Jump frequency bandwidth
Notes:
In order to make the set frequency of the inverter avoid the resonance frequency point of the mechanical load,
the set frequency of the inverter can hop near some frequency point. The operating frequency corresponding
106
Setting range: 0.00~2.50Hz [0.10Hz]
Setting range:0.1 [0]
1: Adjust automatically according to the load and the temperature of
the inverter
Setting range: depending on model
Setting range: 1.0~P2.07 [1.0KHz]
Setting range: 0.00~Max frequency [0.00Hz]
Setting range: 0.00~Max frequency [0.00Hz]
Setting range: 0.00~Max frequency [0.00Hz]
Setting range: 0~15.00Hz [0.00Hz]
to the resonance frequency is hopping frequency as shown in Fig. 5-2-5.
Reference Freq.(Hz)
Jump frequency
Jump frequency
bandwidth
Jump
frequency
bandwidth
bandwidth
Jump
frequency 2
Jump
frequency 1
Frequency setting signal
Jump
frequency 3
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