Digital Electronics PS3650A-T42S 설치 매뉴얼 - 페이지 14
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페이지 인쇄2.
Grounding Cautions
• Be sure to create an exclusive ground for
the Power Cord's FG terminal. Use a
grounding resistance of 100Ω, a wire of
2
2mm
or thicker, or your country's
applicable standard.
• The SG (signal ground) and FG (frame
ground) terminals are connected internally
in the PS-A unit.
When connecting the SG line to another
device, be sure that the design of the
system/connection does not produce a
shorting loop.
• The grounding wire should have a cross
sectional area greater than 2mm
the connection point as close to the PS-A
unit as possible, and make the wire as
short, as possible. When using a long
grounding wire, replace the thin wire with
a thicker wire, and place it in a duct.
Exclusive Grounding
PS-A unit
Common Grounding (OK)
PS-A unit
Common Grounding
(Not OK)
PS-A unit
2
. Create
(BEST)
Other
Equipment
Other
Equipment
Other
Equipment
3.
Input/Output Signal Line Cautions
• All PS-A Input and Output signal lines
must be separated from all operating
circuit (power) cables.
• If this is not possible, use a shielded cable
and ground the shield.
• To improve noise immunity, it is
recommended to attach a ferrite core to the
power cord.
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