Mitsubishi MELSEC-A series - Wiring Precautions

5. LOADlNG AND INSTALLATION /MELSEC-A
5.4 Wiring
5.4.1 Wiring precautions
(1 ) Connection cable length
Generally the cable length should be less than 3m.
(2) 1/0 signal wiring
0 Separate I/O signal wires from other cables and use separate
conduit where applicable.
0 In excessively noisy environments I/O signal wires should be
screened and the PC grounded.
0 When running 1/0 signal wires in metal piping, this should be
grounded.
Examples (bad example at top, good example at bottom)
Control
Control
box
2
Wiring conduit
[Relay]
Wiring oconduit
Bring the
AC servo
amplifiers closer to the
AD71 50 that their
cables are minimized
in length and separated
from the other wiring
conduit).
(run outside the wiring
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5-5
IB INAJ €6'01 C
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