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

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 (75Ω).
• Increasing the exposed conductor length increases transmission waveform distortion,
resulting in a transmission error.
Twisted-pair cable
50 mm max.
D-13
D.1 In-panel Wiring
D