7
Grounding Cautions
• Be sure to create an exclusive ground for
the Power Cord’s FG terminal. Use a
grounding resistance of 100
, a wire of
2mm
2
or thicker, or ground using your
country’s applicable standard.
• The SG (signal ground) and FG (frame
ground) terminals are connected internally
in the GP3000H.
When connecting the SG line to another
device, be sure that the design of the
system/connection does not produce a
ground loop.
• The grounding wire should have a
diameter greater than 2 mm
2
. Create the
connection point as close to the GP3000H
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.
Input/Output Signal Line Cautions
• All GP3000H Input and Output signal
lines must be separated from all operating
circuit (power) cables.
• If the operating circuit (power) cables
cannot be separated, use a shielded cable
and ground the shield.
GP3000H
Other
Equipment
Exclusive Grounding
(BEST)
GP3000H
Other
Equipment
Common Grounding (OK)
GP3000H
Other
Equipment
Common Grounding
(Not OK)
