KEB COMBIVERT F5 Safety Manual

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

Contents

12bASIC SAFETY INSTRUCTIONSSwitching an the inputFor applications that require cyclic switching on and off of the drive converter, a timeof at least 5 min must have elapsed after the last switch-on.If you require shorter cycletimes please contact KEB Automation KG.Short-circuit proofThe drive converters are conditional short-circuit proof. After resetting the internal pro-tection devices, the function as directed is guaranteed.Exceptions:• If an earth-leakage fault or short-circuit often occurs at the output, this can lead to adefect in the unit.• If a short-circuit occurs during regenerative operation (2nd or 4th quadrant, regener-ation into the DC link), this can lead to a defect in the unit.WARNING Automatic Restart !Drive converters may be set, dependent on type, to restart automatical-ly following a fault stoppage (e.g. Undervoltage Error), when the faultconditions clear. System design must take this into account, if appro-priate, and additional monitoring or protective features added wherenecessary.Attention Voltage Peaks !When using IGBT inverters, high voltage peaks may arise in the motordue to the switching action of the inverter output devices. These mustbe taken into account when using motor cables longer than 15m orhigh frequency motors. In this case, the motor can be protected with amotor choke, dv/dt filter or sine filter.1.7 MaintenanceDie folgenden Wartungsarbeiten sind nach Bedarf, mindestens jedoch einmal pro Jahr,durch autorisiertes und eingewiesenes Personal durchzuführen.► Check unit for loose screws and plugs and if necessary tighten up.► Clean drive converter from dirt and dust deposits. Pay attention especially to cool-ing fins and protective grid of the fans.► Examine and clean extracted air filter and cooling air filter of the control cabinet.► Check the function of the fans of the drive converter. The fans must be replaced incase of audible vibrations or squeak.► Make a visual leak test of the cooling circuit for liquid-cooled inverters.