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When contacting and using two line filters
Power
supply
When contacting and using four line filters
Power
supply
Precautions
• For wires of the main circuit 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 supply lines, passes must be four times or less. Do not pass the grounding wire through the
filter. Otherwise, the effect of the filter will drop.
• Place the line noise filters as close to the servo amplifier as possible for their best performance. Noise-reducing effect will
be enhanced.
• In addition to the servo amplifier (converter unit) main circuit power supply side and servo amplifier power output side, the
line noise filter can be used for the servo motor brake cable, encoder cable, control signal cable, and others. In this case,
passes must be four times or less. However, consider the flex life and use the encoder cable in such a way that it does not
affect the servo amplifier, converter unit, drive unit, and servo motor.
4 EMC COUNTERMEASURE PARTS
22
4.5 Line noise filter
Servo amplifier
(Converter unit)
L1
L2
L3
(4 times pass)
(4 times pass)
Servo amplifier
(Converter unit)
L1
L2
L3
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