Digital Electronics GP-2401 Series, User Manual

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Chapter 3 - Installation and Wiring
3-6
GP-2401/2501/2601 Series User Manual
• Wherever possible, use thick wires (max 2mm 2 ) for power terminals, and
twist the exposed wire ends when connecting the Ring Terminals.
• Please use the following size crimp-on type Ring Terminals.
3.2 Wiring Precautions
3.2.1 Connecting the Power Cord
• When the FG terminal is connected, be sure the wire is grounded.
Not grounding the GP unit will result in excessive noise. Use your
country’s applicable standard for grounding.
• To prevent the Ring Terminals from causing a short when the ter-
minal block attachment screws are loosened, be sure to use sleeve-
type Ring Terminals.
3.2.3 Grounding
• The SG and FG terminals are connected internally in the GP unit.
• When connecting the SG line to another device, be sure that the
design of the system/connection does not produce a shorting loop
in your system.
WARNINGS
• To avoid an electric shock, be sure the power cord is
unplugged from the power outlet when connecting
the power terminals to the GP unit.
• GP2401-TC41-24V and GP2501-LG41-24V are de-
signed to use only DC24V power. Using any other
level of power can damage both the power supply
and the GP unit.
• For models GP2501-TC11, GP2501-SC11 and GP2600-
TC11, all products not marked Revision "3" are de-
signed to use only AC100V power. Using any other
level of power can damage both the power supply
and the GP unit.
• Since the GP is not equipped with the power switch,
be sure to connect a breaker type power switch to the
GP’s power cord.
• Be sure to ground the GP’s FG terminal. Failure to do
so can lead to an electrical shock or GP malfunction.