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H-14
3 Wiring
3.4 Analog Input / output Line
FX
3G
/FX
3U
/FX
3UC
PLC User's Manual - Analog Control Edition
FX
3U
-3A-ADP (2-channel analog Input, 1-channel analog output)
3.4 Analog Input / output Line
3.4.1 Analog Input Line
For analog input, "voltage input" or "current input" can be selected for each channel.
*1. Use the 2-core shielded twisted pair cable for the analog input lines, and separate the analog input
lines from other power lines or inductive lines.
*2. If "current input" is selected, be sure to short the line between the V+ terminal and the I+ terminal.
(: Channel number).
3.4.2 Analog Output Line
*1. Use 2-core shielded twisted pair cable for the analog output lines, and separate the analog output
lines from other power lines or inductive lines.
*2. Ground the shielded wire at one point on the signal receiving side.
250
Ω
110k
Ω
ch
88.7k
Ω
3A-ADP
V +,I +,ch : represents the channel number.
Terminal
block
I +
COM
V +
*1
I +
COM
V +
250
Ω
110k
Ω
ch
88.7k
Ω
Class-D
grounding
24+
24-
24V DC
+15V
*1
If current input is selected:
If voltage input is selected:
*2
Connection of external
power supply line
3A-ADP
Terminal
block
I0
COM
V0
I0
COM
*1
If voltage output is selected:
If current output is selected:
V0
3A-ADP
Terminal
block
*2 Class-D grounding
*2 Class-D grounding
*1