VFD-F (CURVE).cdr

FaultNameFault DescriptionsIsum errorReturn to the factory.Corrective ActionsVFD-F SeriesOH errorSoftware protectionfailureReturn to the factory.Return to the factory.Auto accel/decel failureGround fault:The AC drive output isabnormal. When theoutput terminal isgrounded (short circuitcurrent is 50% more thanthe AC drive ratedcurrent), the AC drivepower module may bedamaged. The shortcircuit protection isprovided for AC driveprotection, not userprotection.External Base Block.AC drive output is turnedoff.AnLEr: analog feedbackerrorFan Power Fault(150~300HP)Don’t use the function of auto acceleration/deceleration.Ground fault:1. Check whether the IGBT power moduleis damaged.2. Check for possible poor insulation atthe output line.1. When the external input terminal (B.B)is active, the AC drive output will beturned off.2. Disable this connection and the ACdrive will begin to work again.1. Check both parameter settings andwiring of Analog/PC (Pr.10-00).2. Check for possible fault betweensystem reaction time and the feedbacksignal detection time (Pr.10-08).Return to the factory.7DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED 7-5