Omron CP1E-E10DT-A, User Manual

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8-7
8 Using Expansion Units and Expansion I/O Units
CP1E CPU Unit Hardware User’s Manual(W479)
8-1
An
al
o
g
I
n
p
u
t U
n
it
s
8
8-1-4
F
lo
w
o
f O
p
e
rat
ion
2
Wire to analog output devices.
(1) Wiring internal circuits of the CPU Unit
(2) Wiring analog output devices to the Analog Input Unit
Precautions for Correct Use Precautions for Correct Use
• Do not connect the shield when using shielded twisted-pair cables.
• When an input is not being used, short V IN and I IN to COM terminals.
• Separate wiring from power lines (AC power supply lines, high-voltage lines, etc.)
• When there is noise in the power supply line, install a noise filter on the input section and the
power supply.
AG
Analog input 4
Analog ground
COM1(
−
)
I IN1
V IN1
COM4(
−
)
I IN4
V IN4
510 k
Ω
510 k
Ω
510 k
Ω
510 k
Ω
250
Ω
250
Ω
Internal circuits
Analog input 1
to to
V IN
COM
I IN
V IN
COM
I IN
Analog
device with
voltage
output
Analog
Input
Unit
+
−
+
−
Analog
device with
current
output
Analog
Input
Unit
2-core shielded
twisted-pair cable
2-core shielded
twisted-pair cable
FG FG