Xilinx Spartan 6 FPGA

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Qdesys Sensorless Field Oriented Control Quick Start Guide

RPFM Panel Description

The RPFM Mode led reports the active status of RPFM modulator. The light green value

indicates that it is operating; the dark green (OFF) indicates RPFM is not operating. Clicking on

RPFM led will activate the RPFM itself.

NOTE: The current implementation drives the three phase’s motors only; for stepper motors

RPFM is not implemented.

The Mod Zone LED reports the saturation zone of RPFM modulator. The colors are:

 Yellow: Sinusoidal wave (sine waveform + space vector waveform)

 Cyan : Hexagon saturation zone,

 Green: Square wave; also called six steps for 3-phase motors

These values are reported by the RPFM IP in real time.

The Meter reports the modulation level of RPFM modulator. The colored zones refer to:

 Yellow : sinusoidal modulation; from 0% to 86.603%,

 Red : space vector; from 86.603% to 100%,

 Cyan: hexagon saturation zone; from 100% to 110.266%,

 Green: square wave zone (six steps); from 110.266% and over.

The RPFM Pulse Width can be changed according the specific motor electric characteristics.

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