Digital Electronics Corporation PL7900-T42 설치 매뉴얼 - 페이지 16

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Grouding Cautions

(a) Dedicated Ground

(b) Shared Ground - allowed

Cautions When Connecting I/O Signal Lines

• I/O signal lines must be wired separately from the power circuit cable. If the

power circuit cable needs to be wired together with the input/output (I/O) sig-

nal lines for any reason, use shielded cables and ground one end of the shield

to the PL's FG terminal.

• To improve noise immunity, it is recommended to attach a ferrite core to the

power cord.

Note

Be aware that the Digital Electronics Corporation shall not be held liable for any real or

estimated damages or losses, or third party claims resulting from the use of this product.

Other

device

Other

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Other

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055093L .PL7900-MT01-BTHE

• Set up a dedicated ground when

using the rear panel's FG terminal.

• If a dedicated ground is not pos-

sible, use a shared ground, as

shown in figure (b).

• The grounding point must be as

close to the PL as possible, and the

grounding wires must be as short

as possible. If the wires must be

long, use thick, insulated wires and

run them through conduits.