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YASKAWA MP920 - In-Panel Wiring Separation; Shield Treatment; Exposed Conductor Length

YASKAWA MP920
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D.1 In-panel Wiring
D-13
D
D.1.3 In-panel Wiring Separation
• Nonshielded in-panel cables must be thoroughly separated from low-voltage cables.
If this is difficult, shield the low-voltage cables.
• Shielded in-panel cables must be thoroughly separated from high-voltage cables.
If this is difficult, shield the high-voltage cables.
D.1.4 Shield Treatment
• Connect the shield of each shielded in-panel twisted-pair cable to the Es ground terminal
so that it does not loop.
D.1.5 Exposed Conductor Length
• The exposed conductor length of each in-panel twisted-pair cable should be as short as
possible (50 mm or less).
• The characteristic impedance of the exposed conductor section is greater than the pre-
scribed value (75).
• Increasing the exposed conductor length increases transmission waveform distortion,
resulting in a transmission error.
50 mm max.
Twisted-pair cable

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