------Question for CRD25DA12N-FMC Please Put your question below------
What is the highest fundamental frequency the device is capable of?
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I saw this, but my question is if this is just a artificial range imposed by the GUI, or a real limitation of the hardware.
One may wish to think of it as a limit enforced by the software to protect the curious or incautious. If I read correctly we’re talking about a reference frequency for open-loop operation (e.g. as a utility power inverter) for which 500Hz covers the likely use cases including 400Hz aircraft applications, and in motion driver applications that’d usually translate to 30K RPM. Likely enough for most use cases.
In the limit I suppose one could try to push this “fundamental” frequency to something approximating the PWM frequency, at which point the waveforms would look terrible, any feedback mechanisms used have likely run out of bandwidth, and the whole thing is at the brink of instability and self-destruction. At 800V that’d provide more excitement than most people would want in consequence for fat-fingering an extra zero…
I am thinking the sensing has limited bandwidth. This could be a limiting factor for fundamental frequency. Does anyone happen to know the voltage and current sensing characteristics for the CRD25DA12N-FMC?
The manual linked in the documents section of the product page gives a lot more info than the datasheet, and the manufacturer’s product page has a link for downloading the relevant design files for the board.
