Recommended signal
wiring crimp-on lug
N1.25-MS3
(JST Mfg. Co., Ltd.)
• With a clamp terminal, we recommend the following
wire.
GX90XA
Cross-sectional area 0.05 mm
2
to 1.5 mm
2
(AWG30 to 16)
Stripped wire length 5 to 6 mm
GX90XD, GX90XP, GX90YA
Cross-sectional area 0.2 mm
2
to 1.5 mm
2
(AWG24 to 16)
Stripped wire length 9 to 10 mm
RS-422/485 (/C3 option)
Cross-sectional area 0.2 mm
2
to 1.5 mm
2
(AWG24 to 16)
Stripped wire length 6 to 7 mm
FAIL output/status output (/FL option)
Cross-sectional area 0.33 mm
2
to 2.0 mm
2
(AWG22 to 14)
Stripped wire length 10 to 11 mm
• Take measures to prevent noise from entering the
measurement circuit.
• Move the measurement circuit away from the power
cable (power circuit) and ground circuit.
• Ideally, the object being measured should not
generate noise. However, if this is unavoidable,
isolate the measurement circuit from the object.
Also, ground the object being measured.
• Shielded wires should be used to minimize the noise
caused by electrostatic induction. Connect the shield
to the ground terminal of the GX/GP as necessary
(make sure you are not grounding at two points).
• To minimize noise caused by electromagnetic
induction, twist the measurement circuit wires at
short, equal intervals.
• Make sure to earth ground the protective ground
terminal through minimum resistance.
• When wiring input/output signal cables, observe the
minimum bend radius of the cables. For the minimum
bend radius, use the specifications indicated by
the input signal cable manufacture or six times the
conductor diameter of the input/output signal cable,
whichever is larger.
• When using internal reference junction compensation
on the thermocouple input, take measures to stabilize
the temperature at the input terminal.
• Always use the terminal cover.
• Do not use thick wires which may cause large heat
dissipation (we recommend a cross sectional area of
0.5 mm
2
or less).
• Make sure that the ambient temperature remains
reasonably stable. Large temperature fluctuations
can occur if a nearby fan turns on or off.
Wiring
• To prevent electric shock while wiring,
make sure that the power supply is
turned off.
• If a voltage of more than 30 VAC or
60 VDC is to be applied to the output
terminals, use ring-tongue crimp-on
lugs with insulation sleeves on all
terminals to prevent the signal cables
from slipping out when the screws be-
come loose. Furthermore, use double-
insulated cables (dielectric strength
of 2300 VAC or more) for the signal
cables on which a voltage of 30 VAC
or 60 VDC or more is to be applied.
For all other signal cables, use basic
insulated cables (dielectric strength of
1390 VAC). To prevent electric shock,
attach the terminal cover after wiring
and make sure not to touch the termi-
nals.
• Applying a strong tension to the input
and output signal cables connected to
the GX/GP may damage the cables or
the GX/GP terminals. To avoid apply-
ing tension directly to the terminals,
x all cables to the rear of the mount-
ing panel.
• To prevent re, use signal cables with
a temperature rating of 70°C or more.
• To avoid damage to the GX/GP, do not
apply voltages that exceed the follow-
ing values to the input terminals.
GX90XA
• Allowable input voltage: ±10 V DC
for TC/DC voltage (1 V range or less)/
RTD/DI (Contact), DC mA
±60 V DC for DC voltage (2 V to 50
V range), DI (voltage) input (except
High-speed AI)
±120 V DC for DC voltage (2 to 100
V range ) input , DI (voltage) (High-
speed AI)
• Common mode voltage: ±60 VDC (un-
der measurement category II condi-
tions)
±300 VAC rms (under measurement
category II conditions (High-speed AI)
GX90XD, GX90WD
• Allowable input voltage: +10 VDC
GX90XP
• Allowable input voltage: ±10 VDC
GX90UT
• Allowable input voltage: ±10 V DC
for TC/DC voltage (1 V range or less)/
RTD/DI (Contact), DC mA
±60 V DC for DC voltage (2 V range or
more), DI (voltage)
• Common mode voltage: ±60 VDC (un-
der measurement category II condi-
tions)
The GX/GP is an installation category II
product.
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