Download SINUS PENTA USER MANUAL

SINUS PENTA
PROGRAMMING
INSTRUCTIONS
Suppose that we configure C003 = 192np, so that C002/C003 = 16000/192 = 83.33Hz. The max. carrier
frequency is obtained with this output frequency. The min. frequency is kept constant until frequency C001/C003 =
8.33 Hz is attained, corresponding to 250 rpm of the motor speed. In the output frequency range, ranging from
8.33 to 83.33Hz, a synchronous modulation is obtained and the carrier frequency applied results from: f carrier =
fout * C003 [Hz].
24.1.3.
VTC C ONTROL
The only parameter of the Carrier Frequency menu used for VTC control algorithm is C004, allowing to enable
silent modulation. The modulation frequency to be used is defined by the inverter.
24.1.4.
FOC C ONTROL
FOC control algorithm selects the silent modulation mode (C004) and allows to increase carrier frequency when
possible. FOC algorithm uses a carrier frequency corresponding to:
Min [8kHz ; Max. carrier freq. allowed for the inverter size];
In C002, if you set a higher value than the value resulting from the formula above, FOC control will use C002 as
the modulation frequency.
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