Noise Reduction Techniques - Mitsubishi Electric MELSERVO MR-MT2010 Instruction Manual

3. INSTALLATION

3.6 Noise reduction techniques

(1) Grounding shield of shielded cables
The following shows measures against malfunctions of the sensing module when the sensing module is
installed near a device which generates excessive noise. Ground a shield of the shielded cable near the
sensing module, and be careful that the cable after grounding should not be affected by electromagnetic
induction of the cable before grounding.
Partly remove the insulator of the shielded cable, and ground the exposed shielded part by making
contact in a large area with the cabinet. You can also use clamp metal parts as shown in figure 5.2.
Mask the painted internal wall of the cabinet that touches the clamp metal parts.
Figure 5.1 The shielded part to be exposed
Ground the shield of the signal input cable as close as possible (30 cm or less) to the sensing module.
Shielded part
Sensing module
Inside the cabinet
AD75CK
3 - 12
Masked painted
part
Figure 5.2 Grounding shields
30 cm or less
Screw
Clamp fitting
Shielded cable