Mitsubishi Electric EZMOTION MR-E Super MR-E-70A-QW003 - Page 213

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13. OPTIONS AND AUXILIARY EQUIPMENT
(d) Line noise filter (FR-BSF01)
This filter is effective in suppressing noises radiated from the power supply side and output side of the
servo amplifier and also in suppressing high-frequency leakage current (zero-phase current) especially
within 0.5MHz to 5MHz band.
Connection diagram Outline drawing [Unit: mm]
Use the line noise filters for wires of the main power supply (L
1
L
2
L
3
) and of the motor power supply (U V W). Pass each of the
3-phase wires through the line noise filter an equal number of times
in the same direction. For the main power supply, the effect of the
filter rises as the number of passes increases, but generally four
passes would be appropriate. For the motor power supply, passes
must be four times or less. Do not pass the grounding (earth) wire
through the filter, or the effect of the filter will drop. Wind the wires by
passing through the filter to satisfy the required number of passes as
shown in Example 1. If the wires are too thick to wind, use two or
more filters to have the required number of passes as shown in
Example 2. Place the line noise filters as close to the servo amplifier
as possible for their best performance.
Example 2
Two filters are used
(Total number of turns: 4)
Power
supply
Servo amplifier
Line noise
filter
NFB
L
3
L1
L2
Example 1
(Number of turns: 4)
Power
supply
NFB
L
1
L
2
L3
Servo amplifier
Line noise
filter
MC
MC
FR-BSF01
4
.
5
Approx. 110
95 0.5
A
p
p
r
o
x
.
2
2
.
5
A
p
p
r
o
x
.
6
5
Approx. 65
33
2- 5
1
1
.
2
5
0
.
5
(e) Radio noise filter (FR-BIF)...for the input side only
This filter is effective in suppressing noises radiated from the power supply side of the servo amplifier
especially in 10MHz and lower radio frequency bands. The FR-BIF is designed for the input side only.
Connection diagram Outline drawing [Unit: mm]
Make the connection cables as short as possible.
Grounding is always required.
When using the FR-BIF with a single-phase power supply, always
insulate the wires that are not used for wiring.
Servo amplifie
r
NFB
L
3
L2
L
1
MC
Power
supply
Radio noise
filter FR-BIF
Leakage current: 4mA
29
58
4
2
4
Red BlueWhite Green
44
29
7
hole
A
b
o
u
t
3
0
0
5
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