Panasonic AMK3000P22 Installation Manual

Contents

26 ABNORMALITY DIAGNOSTICFUNCTION AND RESET METHOD5.1 Details and Remedies for Various Fault TripsThe fault trip memory stores the causes of trip in monitor modes n20 to n23.Even if the power is cut off, the fourth to the latest causes of trip will still be held. (Detailsof factory inspection are stored in the memory before delivery.)Display Details and causes ofabnormality RemediesSC1 · Instantaneous overcurrentduring acceleration· Check for any shorted output or ground.· Eliminate sharp fluctuation at load side.· Extend acceleration/deceleration time(parameters P001, P002 and P317 to P322).· Stop ON/OFF operation of magneticcontactor at load side.SC2 · Instantaneous overcurrent atconstant speedSC3 · Instantaneous overcurrentduring decelerationSC4 · Instantaneous overcurrentduring acceleration/deceleration/constant speedSC5 · Shorted output or overcurrentduring startup · Check for any shorted output or ground.SC6 · Failure detected duringstartup · Check the internal switching module(Welcome to consult with us.)OC1 · Overcurrent duringacceleration· Check output for open phase and eliminatesharp fluctuations at load side.· Extend acceleration/deceleration time(parameters P001, P002 and P317 to P322).· Adjust torque boost level (parameter P011).· Check for restart operation during normal operation.· Stop ON/OFF operation of magneticcontactor at load side.OC2 · Overcurrent at constant speedOC3 · Overcurrent duringdecelerationOU1 · Internal DC overvoltageduring acceleration · Extend acceleration time (parameters P001, P317,P319 and P321).OU2 · Internal DC overvoltage atconstant speed · Eliminate sharp fluctuations at load side.OU3 · Internal DC overvoltageduring deceleration · Extend deceleratin time (parameters P002,P318, P320 and P322)LU · Power supply voltage below85% of its rating· Measure power supply voltage and checkinput for open phase.· Check ride-through restart function.OL· The output current exceeds125% of electronic thermalsetting current or 140% ofrated current of inverter formore than 1 minute.· Check electronic thermal setting current.· Check and adjust torque boost level(parameter P011).· Reduce the load.OH · Heat sink overheated · Check ambient temperature.AU · External fault stop input signalis input from control circuitterminals.· Check if the external signal is proper and iftiming circuit is correct.