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Chapter 3 - Installation and Wiring
3.2
Wiring Cautions
3.2.1 Connecting the Power Cord
• 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 is designed to use only with 24 VDC
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, products on which REV "3" is not marked are
designed to use only with 100 VAC 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.
• 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
terminal block attachment screws are loosened, be sure to use
sleeve-type Ring Terminals.
• 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.
• Wherever possible, use thick wires (max 2mm
the exposed wire ends when connecting the Ring Terminals.
• Please use the following size crimp-on type Ring Terminals.
• To prevent the Ring Terminals from causing a short when the
terminal block attachment screws are loosened, be sure to use
sleeve-type Ring Terminals.
3-6
WARNINGS
3.2.3 Grounding
GP-2401/2501/2601 Series User Manual
2
) for power terminals, and twist
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