Mitsubishi Electric RP-1ADH-S15 Series Standard Specifications Manual page 63

3 Controller
2) Line noise filter
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.
Fig.3-15 ： Example of noise filter installation
Additional Axis Function 3-54