ABB ACS550 Drive VFD Switching Frequency – for switching frequency goto the parameter group 26 and then change parameter 2606.
Parameter
2606 – …… Hz ( 4 kHz, 8 kHz, 12 kHz, 16 kHz)
Switching frequency derating – When using the 8 kHz switching frequency (parameter 2606),
- derate all rated currents and powers (including drive’s overload currents) to 80%.
When using the 12 kHz switching frequency (parameter 2606), - derate all rated currents and powers (including drive’s overload currents) to 65%
(to 50% for 600 V, R4 frame sizes, that is for ACS550-U1-032A-6 … ACS550-U1-
062A-6), - derate ambient temperature maximum to 30 °C (86 °F).
- Note: The continuous maximum current is limited to I2hd .
Note: Setting parameter 2607 SWITCH FREQ CTRL = 1 ( ON ) allows the drive to reduce
the switching frequency if/when the drive’s internal temperature exceeds 80 °C (with
12 kHz switching frequency) or 90 °C (with 8 kHz switching frequency). See the
parameter description for 2607 for details.
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ABB ACS550 Drive VFD Switching Frequency
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