Vacon NX series User Manual

Also see for NX series: User manual Applications manual Maintenance manual Operating guide Applications manual

Contents

Vacon NX series User Manual Manual pdf 17 page image

Receipt of delivery vacon • 15Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/33.5 MaintenanceAll technical devices, drives as well, need a certain amount of care-taking and failure preventivemaintenance. To maintain trouble-free operation of the VACON® NX Active Front End,environmental conditions, as well as load, line power, process control, etc. have to be withinspecifications, determined by manufacturer.If all conditions are in accordance with the manufacturer's specifications, there are no otherconcerns, but to provide a cooling capacity high enough for the power- and control circuits. Thisrequirement can be met by making sure, that the cooling system works properly. Operation ofcooling fans and cleanness of the heat sink should be verified regularly.Regular maintenance is recommended to ensure trouble free operation and long lifetime ofVACON® NX Active Front End. At least the following things should be included in the regularmaintenance.It is also recommended to record all actions and counter values with dates and time for follow up ofmaintenance.Table 6. Maintenance intervalInterval Maintenance12 months (if unit is stored) Capacitor reforming, see Chapter 3.4.6 - 24 months (The interval is different indifferent environment.)Check tightening torque of the input and outputterminals and I/O terminals.Clean the heat sink.Clean the cooling tunnel.Check operation of the cooling fan, check forcorrosion on terminals, bus bars and othersurfaces.Check the door filters.5 - 7 yearsChange the cooling fans.• Main fan of the unit.• Fan of the LCL filter.• Internal IP54 (UL Type 12) fan.• Cabinet cooling fan/filter.5 - 10 years Change the DC bus capacitors if DC voltage ripple ishigh.