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5-21
5 Installation and Wiring
CP1E CPU Unit Hardware User’s Manual(W479)
5-3 Wiring
5
5-
3-4 Wiring Safety and Noise Contr
ols
Whenever possible, place I/O signal lines and power lines in separate ducts or conduits both inside and
outside of the control panel.
When wiring in the same duct, use shielded cables and connect the shields to the GR terminal to
reduce noise.
When an inductive load is connected to an I/O Unit, connect a surge protector or diode in parallel with
the load as shown below.
Precautions for Correct Use
Precautions for Correct Use
Use surge protectors and diodes with the following specifications.
5-3-4
Wiring Safety and Noise Controls
I/O Signal Wiring
Inductive Loads
(1)
Suspended ducts
Floor ducts
Conduit
(2)
(1)
(2)
(1)
(2)
(1):I/O cables
(2):Power lines
L
IN
COM
DC input
Surge protector
OUT
COM
Diode
OUT
COM
Relay output
Relay output
Transistor output
L
+
Diode
Surge protector
Resistance
Capacitor
Voltage
: 50
Ω
: 0.47
μ
F
: 200V
Diode
Breakdown voltage
Mean rectification current
: 3 times load voltage
: 1 A
Summary of Contents for CP1E-E**D Series
Page 3: ......
Page 66: ...2 Basic System Configuration and Devices 2 22 CP1E CPU Unit Hardware User s Manual W479...
Page 318: ...Appendices A 54 CP1E CPU Unit Hardware User s Manual W479...
Page 322: ...Index 4 CP1E CPU Unit Hardware User s Manual W479...
Page 324: ...Revision 2 CP1E CPU Unit Hardware User s Manual W479...
Page 325: ......