Mitsubishi Electronics MELSEC-F Manuel D’Utilisation
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.
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).
( : 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.
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
grounding
24+
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
block
*2 Class-D grounding
*2 Class-D grounding
*1