AN1904 Datasheet, PDF (57/102 Pages) STMicroelectronics – ST7MC three-phase AC induction motor control software library

AN1904
ACM_GetOptimumSlip
Library functions per software module
Synopsis
#include “acmotor.h”
u8 ACM_GetOptimumSlip(u16 StatorFrequency);
Description
The purpose of this function is to return the most appropriate slip
frequency, based on the stator frequency, if this value changes within the
motor operating range. Set-points for this curve may be obtained either
from the motor manufacturer or from empirical trials.
Figure 23. Optimum Slip Frequency
Slip Frequency (Hz)
OPT_SLIP_LOWFREQ
OPT_SLIP_HIGHFREQ
Stator Frequency (Hz)
OPT_SLIP_LOWFREQ_LIMIT OPT_SLIP_HIGHFREQ_LIMIT
Inputs
Returns
Duration
See also
StatorFrequency with [0.1Hz] unit.
OptimumSlip with [0.1Hz] unit, in u8 format, from 0 to 25.6Hz maximum.
31.5 µs (CPU running at 8 MHz).
Section on page 60.
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