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3. SIGNALS AND WIRING
3.5 Noise reduction techniques
(1) Grounding shield of shielded cable
The following show measures against malfunctions of MR-D30 and servo amplifier for when a device
which generates excessive noise is set around MR-D30.
Ground a shield of the shielded cable by the side of MR-D30 and be careful for the cable after grounding
should not be affected by electromagnetic induction of the cable before grounding.
Ground the shielded part whose insulator was partly removed to a wide face of the cabinet. You can also
use clamp metal parts as figure 3.2. Mask the paint work which touches the clamp metal part of the
inside cabinet when using them.
Figure 3.1 Exposing shielded part
Ground the shield of the cable for input signals close to MR-D30 (20 cm to 30 cm or shorter).
Shielded part
MR-D30
Inside cabinet
20 cm to 30 cm
AD75CK
3 - 11
Masked paint part
Figure 3.2 Grounding shield
Screw
Clamp fitting
Shielded cable
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