Toshiba TOSVERT VF-S15 Instruction Manual

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E65818751. IntroductionTOSVERT VF-S15 is equipped with shock monitoring function.In case output current or torque exceeds or lowers the set level for a certain amount of time, the inverteroutputs the alarm signal from output terminals or trips (inverter stops). Temporary change in current ortorque can be eliminated from detecting conditions.Shock monitoring function enables monitoring the load side and protecting the equipments in case of loadabnormality including the detection of excessive loading of conveyors and breakage of conveyor belt.2. Shock monitoring functionWhen output current or torque exceeds or lowers the set level for a certain amount of time, shockmonitoring function outputs alarm signal from the output terminals or the inverter trips.Over-torque trip/ alarm and small current trip/alarm have similarly functions as the shock monitoringfunctions. The difference is as described below;Shock monitoring function Over-torque trip/ alarm Small current trip/ alarmMain parameters f590(Shock monitoring)f615(Over-torque trip/alarm selection)f610(Small current trip/alarm selection)Subject of detection:torque/ output currentTorque detection or outputcurrent detection areselectableTorque detection Output current detectionDetection method Over-current/ torque orLow-current/ torque areselectableOver-torque Low-currentAction at detection Trip or alarm are selectableDetection level 0-250(%) 1-250 (%) 0-150 (%)Detection time 0-10.0 (s) 0-10.0 (s) 0-255 (s)Detecting conditions -Detection waiting timecan be set at start-up-Always detecting orduring operation exceptacceleration/decelerationare selectable *Always detecting Always detecting* Temporary change in output current or torque at start-up or acceleration/ deceleration can be eliminatedfrom detecting conditions.2

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