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FX2N-5A Special function block Wiring 5
5-2
5.2 Input Wiring
Figure 5.2: Input Wiring
*1 Use a two-core, shielded twisted pair
for the analog input line, and separate it
from other power lines or a lines easily
induced.
*2 If there is voltage ripple in the input
signal or there is noise in the external
wiring, connect a bipolar capacitor of
approximately 0.1 to 0.47
µ
F, 25 V.
*3 For the current input, short-circuit the
“V+” terminal and the “I+” terminal.
*4 Make sure to connect the terminal
to the terminal of the PLC basic
unit to which Class D grounding (100
Ω
or less) is performed.
*5 The 24 V DC service power supply of
the PLC is also available.
- For the terminal arrangement, refer to
Section 2.
FX
2N
-5A
24+
24-
*5
24V DC
Class D
grounding
*4
Connected to " "
terminal of PLC
main unit
AG
+15V
-15V
V+
VI-
I+
V+
I+
V+
I+
VI-
250
Ω
4.7k
Ω
250
Ω
4.7k
Ω
4.7k
Ω
250
Ω
200k
Ω
CH1
CH2
CH4
AG
VI-
200k
Ω
200k
Ω
IN1
IN2
IN4
*3
Current
input
*2
*1
Shielded
cable
Voltage
input
DC/DC
converter