VB5N series inverter
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The default carrier frequency below 3.7kW inverter is 5.0 kHz; it is 3.0 kHz for 5.5kW and larger inverters. 18.5kW and
larger inverter is 5.0kHz.
Carrier frequency will affect the motor’s noise and heat loss.The relationship among carier frequency, motor noise, leak
current, and interference are shown below:
Note: (1) to obtain the best control features, the ratio of carrier frequency and highest running frequency must more than
36.
(2) When the carrier frequency is low, the current display value may be error.
0: Linear Accerlate/Decelerate mode
Output frequency increases or decreases as a constant slope, see Fig. 4-4.
1: S curve Accerlate/Decelerate mode
Output frequency increases or decreases as S-curve, see Fig.4-5.
Fig.4-4 Linear Acc/Dec
Fig.4-5 S-curve
Low speed time of S curve
Range: 10.0%~50.0% (Acc/Dec time), P0.14＋P0.15<90%
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