The User Manual of 580 Series General Frequency Converter

7.3 Installation selection guide for EMC external accessory

7.3.1 The power input terminal with EMC input filter

The external EMC input filter installed between frequency converter and power supply can not only restrain the interference for frequency converter by electro magnetic noise, but also prevent the interference for periphery equipments by frequency converter. A filter shall be connected to input terminal to make sure that 580 frequency converter can meet the requirements for C2 installation. When EMC input filter is installed, the following contents shall be noticed:

1) When a filter is used, it shall comply with rated value. Since the filter belongs to Category I of electrical appliance, most area of the metal shell shall contact with installation cabinet excellently. Besides, fine electric conduction continuity is required and otherwise it may cause electric shock or seriously affects the EMC effect.

2) The filter shall be connected to the same common land with frequency converter PE and otherwise it can affect EMC effect.

3) The filter shall be installed near the power input of frequency converter.