29
IM 04L51B01-02EN
Installation and Wiring
• Connecting the input wires in parallel with other
devices can cause signal degradation, affecting all
connected devices. If you need to make a parallel
connection, then
• Turn the burnout detection function off.
• Ground the instruments to the same point.
• Do not turn ON or OFF another instrument during
operation. This can have adverse effects on the
other instruments.
• RTDs cannot be wired in parallel.
Wiring Procedure
A terminal cover is screwed in place on the I/O terminal
block. A label indicating the terminal arrangement is
affixed to the cover.
1. Turn off the GX/GP/GX60, and remove the terminal cover.
2. Connect the signal cables to the terminals.
Recommended
torque for
tightening the
screws
Screw terminal
(M3)
0.5 to 0.6 N•m
Clamp terminal
GX90XA: 0.4 N•m
GX90XD: 0.5 N•m
GX90XP: 0.5 N•m
3. Attach the terminal cover and fasten it with screws. The
appropriate tightening torque for the screws is 0.6 N•m.
Inside dimension of M3 screw terminal block
approx. 6 (0.23) mm
Unit: mm (approx. inch)
Wiring Clamped Terminals
Connection
port
Screw
terminal
Flat-blade screwdriver
Wire
(Stripped wire)
First, loosen the screw at the front using a flat-blade
screwdriver. Insert the input signal wire into the slit on the
left side of the terminal block, and fasten the screw at the
front.
Note
With a clamp terminal, if you use a single wire whose
diameter is 0.3 mm or less, you may not be able to clamp
the wire securely to the terminal. Take measures to
securely clamp the wire such as by folding the conductor
section that will be connected to the clamp terminal in half.
Wiring to a GX90XA Analog Input Module
Universal/Low withstand voltage relay/
Electromagnetic relay/Current (mA) type
Terminal Diagram
CH1
301/201/101
101
102
103
113
114
115
310/210/110
M3 screw terminal
Clamp terminal
Wiring direction
CH10
201
202
203
213
214
215
CH1
CH3
CH5
CH7
CH9
CH2
CH4
CH6
CH8
CH10
Wiring direction
Wiring Diagram
DC voltage input/DI (level)
DI (contact)
+
−
−
+
TC input
RTD input
+
−
−
+
B
b
A
A
B
b
DC current input
(with an external shunt
resistor)
current input
+
−
−
+
+
−
−
+
Type
Input type
Wiring
-U2
DC voltage, thermocouple
(TC), resistance temperature
detector (RTD), DI (voltage,
contact), and DC current (by
adding an external shunt
resistor)
1, 2, 3, 4, 5
-C1
DC current (mA)
6
-L1
DC voltage, thermocouple
(TC), DI (voltage, contact),
and DC current (by adding
an external shunt resistor)
1, 2, 3, 5
-T1
Terminal Arrangement
M3 screw terminal
CH
No.
Term.
No.
Symbol Term.
No.
Symbol Term.
No.
Symbol
CH1
301
b
1
201
-/B
101
+/A
CH2
302
b
1
202
-/B
102
+/A
CH3
303
b
1
203
-/B
103
+/A
CH4
304
b
1
204
-/B
104
+/A
CH5
305
b
1
205
-/B
105
+/A
CH6
306
b
1
206
-/B
106
+/A
CH7
307
b
1
207
-/B
107
+/A
CH8
308
b
1
208
-/B
108
+/A
CH9
309
b
1
209
-/B
109
+/A
CH10
310
b
1
210
-/B
110
+/A
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