Inovance MD380 Series

MD380 User Manual Desc
ription of Function Codes
- 147 -
Function Code Parameter Name Setting Range Default
F0-13
Frequency upper limit
offset
0.00 Hz to maximum frequency
(F0-10)
0.00 Hz
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frequency upper limit is obtained by adding the offset in this parameter to the frequency
upper limit set in F0-11.
Function Code Parameter Name Setting Range Default
F0-14 Frequency lower limit 0.00 Hz to frequency upper limit (F0-12) 0.00 Hz
If the frequency reference is lower than the value of this parameter, the AC drive can stop,
run at the frequency lower limit, or run at zero speed, determined by F8-14.
Function Code Parameter Name Setting Range Default
F0-15 Carrier frequency 0.5–16.0 kHz Model dependent
It is used to adjust the carrier frequency of the AC drive, helping to reduce the motor noise,
avoiding the resonance of the mechanical system, and reducing the leakage current to the
earth and interference generated by the AC drive.
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loss and temperature rise of the motor increase.
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motor decline. However, the AC drive has an increase in power loss, temperature rise and
interference.
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table.
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Carrier frequency Low High
Motor noise Large Small
2XWSXWFXUUHQWZDYHIRUP Bad Good
Motor temperature rise High Low
AC drive temperature rise Low High
Leakage current Small Large
External radiation interference Small Large
The factory setting of carrier frequency varies with the AC drive power. If you need to modify
the carrier frequency, note if the set carrier frequency is higher than the factory setting, it will
lead to an increase in temperature rise of the AC drive heatsink. In this case, you need to
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