Proface GP4600R - 12.1 Standard HMIs with Rear Mounting Options" - Manual (Page 24)

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Wiring
Wiring
Note:
• The shield ground (SG) and FG terminals are connected internally in the GP unit.
• When the functional ground (FG) terminal is connected, be sure the wire is grounded. Not
grounding the GP unit can result in excessive Electromagnetic Interference (EMI).
Grounding is required to meet EMC level immunity.
WARNING
HAZARD OF ELECTRIC SHOCK, EXPLOSION OR ARC FLASH
• Remove all power from the device before removing any elements of the
system, and prior to installing or removing any accessories, hardware, or
cables.
• Remove power before wiring the GP unit’s power terminals.
• The DC model uses only 24 Vdc power. Using any other level of power can
damage both the power supply and the GP unit.
• The AC model is designed to use 100 Vac to 240 Vac input. Using any
other level of power can damage both the power supply and the GP unit.
• Since the GP unit is not equipped with a power switch, be sure to connect
a power switch to the power supply.
• Be sure to ground the GP unit’s FG terminal.
For AC models, use the following torque to tighten the terminals:
• Terminal Block: 1.4 N•m (12.4 lb•in.)
• Functional Ground (FG) Terminal: 1.4 N•m (12.4 lb•in.)
• Replace and secure all elements of the system before applying power to
the GP unit.
Failure to follow these instructions can result in death, serious injury,
or equipment damage.