Noise Filter (Power Supply Line Filter) - Mitsubishi Electric A960GOT User Manual

1 OVERVIEW

1.2.3 Noise filter (power supply line filter)

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The noise filter (power supply line filter) is a device effective to reduce conducted
noise. Except some models, installation of a noise filter onto the power supply lines is
not necessary. However conducted noise can be reduced if it is installed. (The noise
filter is generally effective for reducing conducted noise in the band of 10MHz or less.)
Usage of the following filters is recommended.
Model name
Manufacturer
Rated current
Rated voltage
The precautions required when installing a noise filter are described below.
1) Do not bundle the wires on the input side and output side of the noise filter. When
bundled, the output side noise will be induced into the input side wires from which
the noise was filtered.
(power supply side)
Filter
a) The noise will be included when the input and
output wires are bundled.
2) Earth the noise filter earthing terminal to the control cabinet with the shortest wire
possible (approx. 10cm (3.94 in.)).
FN343-3/01
SCHAFFNER
3A
Input side
(power supply side)
Induction
Output side
(device side)
b) Separate and lay the input and output wires.
MELSEC-GOT
FN660-6/06
SCHAFFNER
6A
250V
Input side
Filter
ZHC2203-11
TDK
3A
Output side
(device side)
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