EMI / RFI POWER LINE FILTERS
196
RFI FILTERS
THE L.G. RANGE OF POWER LINE FILTERS FF (Footprint) – FE (Standard) SERIES, HAVE BEEN SPECIFICALLY DESIGNED WITH HIGH
FREQUENCY LG INVERTERS, THE USE L.G. FILTERS, WITH THE INSTALLATION ADVICE OVERLEAF HELP TO ENSURE TROUBLE
FREE USE ALONG SIDE SENSITIVE DEVICES AND COMPLIANCE TO CONDUCTED EMISSION AND IMMUNITY STANDARDS TO
EN50081 -> EN 61000-6-3:02 and EN 61000-6-1:02
CAUTION
IN CASE OF A LEAKAGE CURRENT PROTECTIVE DEVICES IS USED ON POWER SUPPLY, IT MAY BE FAULT AT POWER-ON OR OFF.
IN AVOID THIS CASE, THE SENSE CURRENT OF PROTECTIVE DEVICE SHOULD BE LARGER THAN VALUE OF LAKAGE CURRENT AT
WORST CASE IN THE BELOW TABLE.
RECOMMENDED INSTALLATION INSTRUCTIONS
To conform to the
EMC
directive, it is necessary that these instructions be followed as closely as possible. Follow the usual safety
procedures when working with electrical equipment. All electrical connections to the filter, inverter and motor must be made by a
qualified electrical technician.
1-) Check the filter rating label to ensure that the current, voltage rating and part number are correct.
2-) For best results the filter should be fitted as closely as possible to the incoming mains supply of the wiring enclosure, usually directly after the
enclosures circuit breaker or supply switch.
3-) The back panel of the wiring cabinet of board should be prepared for the mounting dimensions of the filter. Care should be taken to remove
any paint etc... from the mounting holes and face area of the panel to ensure the best possible earthing of the filter.
4-) Mount the filter securely.
5-) Connect the mains supply to the filter terminals marked
LINE
, connect any earth cables to the earth stud provided. Connect the filter
terminals marked
LOAD
to the mains input of the inverter using short lengths of appropriate gauge cable.
6-) Connect the motor and fit the ferrite core (output chokes) as close to the inverter as possible. Armoured or screened cable should be used
with the 3 phase conductors only threaded twice through the center of the ferrite core. The earth conductor should be securely earthed at both
inverter and motor ends. The screen should be connected to the enclosure body via and earthed cable gland.
7-) Connect any control cables as instructed in the inverter instructions manual.
IT IS IMPORTANT THAT ALL LEAD LENGHTS ARE KEPT AS SHORT AS POSSIBLE AND THAT INCOMING MAINS AND
OUTGOING MOTOR CABLES ARE KEPT WELL SEPARATED.
Morek IT OÜ, Rauna 24, 76506 Saue Harjumaa, Estonia. www.morek.eu Tel. +372 604 1423 Fax +372 604 1447 [email protected]