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7-1. Analog I/O Board
4. Wiring
■
Pin layout
Notes:
• When using current input, connect between current input terminal (e.g., I0, I1, I2, I3) and voltage input
terminal (e.g., V0, V1, V2, V3).
• The voltage and current range cannot be used on the same channel at one time.
The terminals of the unused range should be left open.
• Use the 24 V terminal of the input terminal or the expansion power supply connector for the analog I/O
board power supply.
• Refer to page 61, “6) Wiring for I/O terminals”, for the wiring.
• To prevent electric and magnetic interference, use shielded twisted-cable (two-core type) for I/O signals.
• Keep the main circuit wiring away from high voltage lines. Do not bundle signal cables and high voltage
lines together.
• The shielded cable should be grounded at:
Output signal: Output field device side
Input signal:
FG (frame ground) terminal of analog I/O board
COM3
FG
COM2
I–
I+
V
–
V+
I3
V3
FG
I2
COM0
FG
•
FG
I1
V1
I0
V0
•
•
•
•
24V
0V
COM1
Not connected
D/A CH0
A/D CH3
A/D CH2
A/D CH1
A/D CH0
0V
0V
(5V)
24V
V2
–
+
E
Output field device
Output field device
–
+
E
• With current
output
• With voltage
output
Input field device
Input field device
• With current
input
• With voltage
input
Input/output terminal
Input terminal
Expansion power
supply connector
12
1
15
1
■
Wiring example
Содержание FP-M Hardware
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