Technical documentation - W.E.ST. Elektronik GmbH
Technical documentation - W.E.ST. Elektronik GmbH
Technical documentation - W.E.ST. Elektronik GmbH
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PWM (pwm output frequency)<br />
W.E.<strong>ST</strong>. <strong>Elektronik</strong> <strong>GmbH</strong><br />
Kommando Parameter Vorgabe Einheit<br />
pwm x x= 100… 3900 2600 Hz<br />
PWM frequencies of ≥2000 Hz improve the current loop dynamics. PWM frequencies in the range of<br />
100… 500 Hz will be used for low dynamic valves with high hysteresis. In this case, DAMPL must be zero.<br />
Caution: In some cases PPWM and IPWM should be adapted for the low current loop dynamics.<br />
PPWM / IPWM (P-gain and i-gain of the current compensator)<br />
Kommando Parameter Vorgabe Einheit<br />
ppwm:i x<br />
ipwm:i x<br />
x= 0… 20<br />
x= 5… 100<br />
7<br />
40<br />
PI-compensator used for the current control function. Changes should be only done with good experience<br />
in optimizing of current loops.<br />
In cases of a PWM-frequency >2500 Hz; PPWM can be increased to 7… 15 (typical values: PPWM = 7<br />
and IPWM = 40).<br />
In cases of a PWM-frequency
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