Analog Input / Output Line - Mitsubishi Electric FX3G User Manual

FX /FX /FX /FX /FX
3S 3G 3GC 3U
FX -3A-ADP (2-channel Analog Input, 1-channel Analog Output)
3U
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.
If current input is selected:
If voltage input is selected:
V +,I +,ch
*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. For FX
3S
available.
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.
H-16
PLC User's Manual - Analog Control Edition
3UC
*1
*1
Connection of external
power supply line
*3
24V DC
Class-D
grounding
: represents the channel number.
/FX /FX Series PLC (AC power type), the 24 V DC service power supply is also
3G 3U
If voltage output is selected:
*2 Class-D grounding
If current output is selected:
*1
*2 Class-D grounding
3A-ADP
Terminal
block
V +
250 
*2
I +
COM
88.7k 
V +
250 
I +
COM
88.7k 
24+
24-
3A-ADP
Terminal
block
V0
I0
COM
3A-ADP
Terminal
block
V0
I0
COM
3.4 Analog Input / output Line
110k 
ch
110k 
ch
+15V
3 Wiring