Digital Electronics Corporation PLB911-42 Посібник з монтажу - Сторінка 16
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Grouding Cautions
(a) Dedicated Ground
PL
(b) Shared Ground - allowed
PL
(c) Shared ground - not allowed
PL
9
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)
signal 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.
© 2000 Digital Electronics Corporation. All rights reserved.
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device
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055091D .PLB910-MT01-BTHE
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• 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.