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• The input filter must be installed upstream on mains side of the variable frequency drive. The variable frequency drives meet the requirements of the low-voltage directive 2006/95/EC and the requirements of the EMC directive 2004/108/EC. The EMC product standard EN 61800-3 relates to the VFD system.

• Most VFDs I've seen have EMC filters in them, though in many cases they're optional or can be disabled by the user. Exactly what function do these filters perform?

• The EMC product standard EN 61800-3 relates to the VFD system. The documentation provides information on how the applicable standards can be complied if the variable frequency drive is a component of the VFD system.

Most VFDs I've seen have EMC filters in them, though in many cases they're optional or can be disabled by the user. Exactly what function do these filters perform?

The input filter must be installed upstream on mains side of the variable frequency drive. The variable frequency drives meet the requirements of the low-voltage directive 2006/95/EC and the requirements of the EMC directive 2004/108/EC. The EMC product standard EN 61800-3 relates to the VFD system.

EMC filters reduce the transfer of electromagnetic noise between the drive and mains power supply. All Optidrives are fitted as standard with an internal EMC filter, except where specified by the customer, and for most industrial applications, this will be sufficient.

Install the VFD mains supply cable separate from the control and data cables and the motor cable. The variable frequency drive may be connected via the terminals "-" and "+" of terminal block X10 to further Agile- or ACTIVE-devices or to a common direct voltage source.