KEB Combivert F5 series Installation Manual

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

Annex AGB - 28Cycle FunctionConstantPay attention to unusual noises of the motor (e.g. vibrations) as well as ofthe frequency inverter (e.g. fan).Pay attention to unusual smells of the motor or frequency inverter (e.g. eva-poration of capacitor electrolyte, braise of the motor winding)MonthlyCheck unit for loose screws and plugs and if necessary tighten up.Clean frequency inverter from dirt and dust deposits. Pay attention especiallyto cooling fins and protective grid of the fans.Examine and clean extracted air filter and cooling air filter of the controlcabinet.Examine function of the fans of the KEB COMBIVERT. The fans must bereplaced in case of audible vibrations or squeak.A.4 StorageThe DC link of the KEB COMBIVERT is equipped with electrolytic capacitors. If electrolyticcapacitors are stored de-energized, the oxide film working as dielectric fluid reacts withthe acidic electrolyte and destroy themselves slowly. This affects the dielectric strengthand the capacity.If the capacitor starts running with rated voltage, it is tried to build the oxide film abrupt again.This causes heat and gas and leads to the destruction of the capacitor.In order to avoid defectives, the KEB COMBIVERT must be started up depending on thestorage period in accordance with the following specification:Storage period < 1 year• Start-up without special measuresStorage period 1…2 years• Operate frequency inverter one hour without modulationStorage period 2…3 years• Remove all cables from the power circuit; especially of braking resistor or module• Open control release• Connect variable transformer to inverter input• Increase variable transformer slowly to indicated input voltage (>1 min) and remainat least on the specified time.Voltage class Input voltage Residence time230 V0…160 V 15 min160…220 V 15 min220…260 V 1 h400 V0…280 V 15 min280…400 V 15 min400…540 V 1 hfurther on next side