Hitachi hitachi low current trip function for pumping applications - Manuals

Hitachi hitachi low current trip function for pumping applications – Manual in PDF format online.

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Manual Hitachi hitachi low current trip function for pumping applications

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Summary

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L300P/SJ300 Low Current Trip Function for Pumping Applications Sometimes it is desirable to have the inverter trip when running at constant speed and the motor current falls below a certain threshold level. In the case of a pump, this would be indicative of absence of fluid in the pump, and hence no...

Page 3 - TIMING CHART; Page 3

TIMING CHART Time Output Frequency [FA1] (N.O.) C041 o [OL] (N.C) o [OL] (N.C) n [OL] AND [FA1] n [OL] AND [FA1] o n Motor Current Hitachi America, Ltd. © 2004 Hitachi America, Ltd. Page 3

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TIMING CHART (continued) p q [FA1] (N.O.) C041 Output Frequency Motor Current p q TRIP [OL] (N.C) q [OL] (N.C) p [OL] AND [FA1] p [OL] AND [FA1] q Hitachi America, Ltd. © 2004 Hitachi America, Ltd. Page 4

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