Salicru CV50-008-4F User Manual

Contents

Salicru CV50-008-4F User Manual Manual pdf 104 page image

104 - 144 Fault Tracking8.8 Maintenance and hardware diagnostics8.8.1 Maintenance intervalsIf installed in an appropriate environment, the inverter requires very little maintenance. The table lists theroutine maintenance intervals recommended by SALICRU.Checking part Checking item Checking method CriterionAmbient environmentCheck the ambient temperature,humidity and vibration and ensurethere is no dust, gas, oil fog andwater drop.Visual examinationand instrumenttestConforming to themanualEnsure there are no tools or otherforeign or dangerous objects Visual examinationThere are no toolsor dangerousobjects.Voltage Ensure the main circuit andcontrol circuit are normal.Measurement bymultimeterConforming to themanualKeypadEnsure the display is clearenough Visual examination The characters aredisplayed normally.Ensure the characters aredisplayed totally Visual examination Conforming to themanualMaincircuitFor public useEnsure the screws are tightenedup Tighten up NAEnsure there is no distortion,cracking, damage orcolor-changing caused byoverheating and aging to themachine and insulator.Visual examination NAEnsure there is no dust anddirtiness Visual examinationNANote: if the color ofthe copper blockschange, it does notmean that there issomething wrongwith the features.The lead of theconductorsEnsure that there is no distortionor color-changing of theconductors caused byoverheating.Visual examination NAEnsure that there are no crackingor color-changing of the protectivelayers.Visual examination NATerminals seat Ensure that there is no damage Visual examination NAFilter capacitorsEnsure that there is no weeping,color-changing, cracking andchassis expansion.Visual examination NAEnsure the safety valve is in theright place.Estimate the usagetime according tothe maintenance ormeasure the staticcapacity.NAIf necessary, measure the staticcapacity.Measure thecapacity byThe static capacityis above or equal to