![background image](http://html.mh-extra.com/html/omron/cp1e-e-d-series/cp1e-e-d-series_user-manual_742511190.webp)
8 Using Expansion Units and Expansion I/O Units
8-22
CP1E CPU Unit Hardware User’s Manual(W479)
2
Wire to analog input devices.
(1) Wiring internal circuits of the CPU Unit
The following diagram shows the internal circuit using CP1W-DA041/DA042 as an exam-
ple, which wires analog outputs 1 to 4. In the case of CP1W-DA021, analog outputs 1 to 2
can be used.
(2) Wiring analog input devices to the Analog Output Unit
Precautions for Correct Use
Precautions for Correct Use
•
Do not connect the shield when using shielded twisted-pair cables.
•
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.
Additional Information
When external power is supplied (when setting the range code), or when there is a power inter-
ruption, a pulse-form analog output may be generated.
If this causes problems with operation, take countermeasures such as those suggested below.
(1) Countermeasure 1
•
Turn ON the power supply for the CP1E CPU Unit first, confirm correct operation, and
then turn ON the power supply for the load.
•
Turn OFF the power supply for the load before turning OFF the power supply for the
CP1E CPU Unit.
(2) Countermeasure 2
•
Control the machine not only by analog output but also by other signals (additional
start/stop control signal for machine).
Analog output 1
Analog ground
NC
I OUT1
COM1 (
−
)
V OUT1
I OUT4
COM4 (
−
)
V OUT4
Analog output 4
Internal circuits
to
to
+
V OUT
COM
I OUT
−
+
V OUT
COM
I OUT
−
Analog
output
unit
Analog
device
with
voltage
input
Analog
output
unit
Analog
device
with
current
input
2-core shielded
twisted-pair cable
2-core shielded
twisted-pair cable
FG
FG
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: ......