Installing A Noise Filter (Power Supply Line Filter) - Mitsubishi Electric GOT2000 Series User Manual

5.2.2

Installing a noise filter (power supply line filter)

A noise filter is a part to effectively reduce conducted noise.
Except some models, installation of a noise filter to the power supply lines is not necessary. However, installing the noise
filter can reduce conducted noise.
The noise filter is effective to reduce conducted noise in the band of 10 MHz or less.
Use a noise filter equivalent to the following noise filters (double π-type filters).
Model
FN343-3/05
FN660-6/06
RSHN-2003
■1. Precautions
The following shows the precautions for installing a noise filter.
(1) Prohibition of bundling cables
Do not bundle the input and output cables of the noise filter.
Bundling the cables inducts the noise from the output-side cable into the input-side cable where noise has been
eliminated by the noise filter.
Wire the input and output cables separately.
Input side
(power supply side)
Filter
(2) Grounding the noise filter
Connect the ground terminal of the noise filter to the control panel with a short cable as much as possible
(approximately 10 cm).
Manufacturer Rated current
SCHAFFNER 3A
SCHAFFNER 6A
TDK 3A
Output side
(device side)
Rated voltage
250V
Bundling the input and output cables inducts noise.
(power supply side)
Bundling
Filter
Output side
(device side)
5.2 EMC Directive Requirements
Input side
Induction
5 - 5
5