| • The electromagnetic compatibility of a piece of machinery depends on the installation method and the care taken during installation. You should pay particular attention to: - Mounting - Filters - Shielding - Earth connections The required components are listed in the overview table. For wiring see the power supply connecting diagram | If you follow the measures outlined below you can be sure that no EMC problems caused by the drive system will occur whilst the system is in operation. • Mounting Ensure that there is sufficient contact between the drive controller and mains choke and the earthed mounting plate: - Mounting plates with a conductive surface (galvanised, cadmium-coated) ensure sufficient long-term contact. - On coated plates always remove the paint coating from the mounting surfaces. - Avoid DIN rail mounting. • If you are using more than one mounting plate: - Ensure generous contact surfaces when connecting the mounting plates (e.g. use copper bands). • When routing the cables make sure that the motor cables are located away from the signal and mains cables. • Avoid using a shared terminal strip for mains input and motor output. • Keep the wiring as close to the reference potential as possible. Free hanging cables act like aerials. Filters • Only use the Rfi filters and mains chokes assigned to the devices. - RFI filters reduce unwanted HF noise to an acceptable level. - Mains chokes reduce the amount of r.m.s. current picked up by the inverter from the mains. - Mains filters act both as a mains choke and an RFI filter. |