KEB COMBIVERT F5 Instruction Manual

Also see for COMBIVERT F5: INSTALLATION GUIDELINE Installation manual Instruction manual Instruction manual Installation manual

Contents

91USThe heat sink temperature risesabove the permissible limit(see technical data)The external motor temperaturesensor trippedOver temperature reset possibleError over speedThis occurs for a short time duringthe power up of the drive, but willclear automatically if everything isOKError encoder failureError signal loss or signal notcorrectDisplay Description Cause and SolutionInverterOverheatMotor OverTemperatureOver TemperatureCooled DownOver SpeedDC BusCharging ErrorEncoder FailureEncoder SignalLoss• Insufficient cooling – increase the airflowaround the inverter• Ambient temperature is too high - add acabinet cooler••••• Fan is clogged – clean fan• Resistance at the terminals T1/T2 > 1650 Ohm• Motor temperature sensor indicating an over-heated motor• Factory jumper between T1/T2 missing• Internal or external temperature has dropped toa safe level. Error “E.OH“ can be reset.• Car speed was greater than 110% of thecontract speed. Speed is measured by themotor encoder.• Check for mechanical problems• Verify motor data LF.10 – LF.19• Input voltage is wrong or to low• High resistance in the supply line• Braking resistor connected to the wrong termi-nals• Braking transistor is not functioning• Hardware failure –replace inverter• Encoder not connected electrically - Verify allencoder connections and signals.• Encoder channels reversed – see LF28• Motor torque is at the limit and the act speed iszero, only at starting -increase the value ofLF.36 and check for brake overlap.• One or more of the signals A+, A-, B+, B-, Z+,Z- are missing.• One or more of the differential signals islatched, i.e. both A+ and A- at are +5V at thesame time. - Check the encoder connectionsas well as the signal levels. All + and - signalshould be opposite ( 0V and >2.0V) while themotor is standing still.Error Messages