Mitsubishi Electric MELSERVO-JE MR-JE-70A Instruction Manual page 286

11. OPTIONS AND PERIPHERAL 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 (0-phase current). It
especially affects the noises between 0.5 MHz and 5 MHz band.
Connection diagram
Use the line noise filters for lines of the power supply (L1, L2, and
L3) and of the servo motor power (U, V, and W). Pass each of the
wires through the line noise filter an equal number of times in the
same direction. For the power supply, the effect of the filter rises
as the number of passes increases, but generally four passes
would be appropriate. For the servo motor power lines, passes
must be four times or less. Do not pass the grounding 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 1
MCCB MC
Power
supply
Line noise
filter
(Number of passes: 4)
Example 2
MCCB MC
Power
supply
Line noise
filter
Two filters are used
(Total number of passes: 4)
FR-BSF01 (for wire size 3.5 mm
Servo amplifier
L1
L2
L3
Servo amplifier
L1
L2
L3
11 - 23
Dimensions [Unit: mm]
2
(AWG 12) or less)
Approx. 110
2- 5
95 ± 0.5
Approx. 65
33