this might be a quick and easy one, but I played with the rev limiter and was surprised by the fmax limit and then measured rpm:
I expected (either/or):
Hz * 60 == maxrpm
Hz * 60 * 4 == maxrpm
I measured:
Hz * 14.6 == maxrpm.
Where is my thinking wrong?
Firmware is 5.18 on the inverter I tested.
Disclaimer: I haven't read the inverter firmware (yet).
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21 Hz == 300 rpm
30 Hz == 424 rpm
40 Hz == 583 rpm
67 Hz == 981 rpm
376 Hz presumed 5500
369 Hz presumed 5400
EDIT:
Oh god just typing it out made me realise:
60 / 4 == 15
~ 14.6.