Parameter Description
Parameters
117
<Setting>
• The higher the carrier frequency, the lower the motor acoustic noise. Unfortunately, it will
result in greater leakage current and larger noises generated by the inverter.
• The higher the carrier frequency, the more energy dissipated, and the higher the
temperature of the inverter.
• In case of a mechanical resonance occurring in a system within the inverter, P.72 is helpful
for improving the performance by adjusting its value.
•
The derating curve is as follows:
2
4
9
15
30
50
70
100
Load (%)
Carrier (KHz)
：
Frame AA, A/B
：
Frame D/E
Applicable frame below
：
：
Frame F/
G
1. For the frame AA, A/B: the carrier is 9K, and the load is 100%.The load will decrease 5%
as the carrier increases 1K each time. For example: the carrier is 15K, and the load is
70%.
2. For frame D/E, the carrier is 4K, and the load is 100%.The load will decrease 10% as the
carrier increases 1K each time. For example: the carrier is 9K, and the load is 50%.
3. For frame F, the carrier is 2K, and the load is 100%.The load will decrease 10% as the
carrier increases 1K each time. For example: the carrier is 9K, and the load is 30%.
4. For the inverter type the frame includes, please refer to the introduction of “Appearance
and Dimension” in section 3.3.
Note: 1. The optimum carrier frequency shall be 8 times greater than the target frequency.
