Installation and Wiring
142
Connecting the AC Power Cord
NOTE: The shield ground (SG) and FG terminals are connected internally in the GP
unit unit.
AC Power Cord Preparation
z Make sure the ground wire is either the same or heavier gauge than the power
wires.
z Do not use aluminum wires in the power supply’s power cord.
z Field wiring terminal marking for wire type (75°C [167 °F] copper conductors
only).
*1
To prevent a short circuit caused by loose screws, use a crimp-type terminal with
an insulating sleeve.
WARNING
EXCESSIVE ELECTROMAGNETIC INTERFERENCE
z 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.
z Remove power before wiring the GP unit’s power terminals.
z 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.
z Since the GP unit is not equipped with a power switch, be sure to connect a
power switch to the power supply.
z Be sure to ground the GP unit’s FG terminal.
Use the following torque to tighten the terminals:
z Terminal Block: 1.4 N•m (12.4 lb•in.)
z Functional Ground (FG) Terminal: 1.4 N•m (12.4 lb•in.)
Failure to follow these instructions can result in death, serious injury, or
equipment damage.
AC Power Cord Grounding Wire
Power Cord Double-insulated Wire
0.75 to 3.5 mm
2
(18-12AWG)
0.75 to 3.5 mm
2
(18-12AWG)
Recommended Ring
Terminal
*1
J.S.T Mfg. Co., Ltd compatible:
z V1.25-M4 (18-16AWG)
z V2-P4 (16-14AWG)
z V5.5-S4 (14-12AWG)
(1) φ4.3 mm (0.17 in.) or more
(2) Less than 7.2 mm (0.28 in.)
J.S.T Mfg. Co., Ltd compatible:
z V1.25-M4 (18-16AWG)
z V2-P4 (16-14AWG)
z V5.5-S4 (14-12AWG)
(1) φ4.3 mm (0.17 in.) or more
(2) Less than 7.2 mm (0.28 in.)
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