Omron CP1L-EL20DR-D, Operation Manual

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Analog Output Option Board Section 10-6
Wiring for Analog Inputs To prevent noise, 2-core shielded twisted-pair cable should be used. And the
shield can be connected to the FG terminal if necessary.
Note (1) If necessary, connect the shield to the FG terminal to prevent noise.
(2) When an input is not being used, short the + and – terminals.
(3) Separate wiring from power lines (AC power supply lines, high-voltage
lines, etc.)
(4) When there is noise in the power supply line, install a noise filter on the
input section and the power supply.
!Caution
When connecting the analog option board to an outside analog device, either
ground the 0 V side of the PLC’s external power supply or do not ground the
PLC’s external power supply at all. Otherwise the PLC’s external power sup-
ply may be shorted depending on the connection methods of the outside ana-
log device. DO NOT ground the 24 V side of the PLC's external power supply,
as shown in the following diagram.
10-6 Analog Output Option Board
Each CP1W-DAB21V Analog Output Option Board provides two analog outputs.
• The analog output signal range is 0 to 10 V (with a resolution 1/4,000).
Main Analog Output Option Board Specifications
V IN
COM
I IN
V IN
COM
I IN
Analog
device with
voltage
output Analog
Input
Option
Board
+
−
+
−
Analog
device with
current
output Analog
Input
Option
Board
2-core shielded
twisted-pair cable
2-core shielded
twisted-pair cable
FG FG
24 V
0 V 0 V
Non-insulated DC power supply
0 V
Analog Device
FG FG FG
Twisted-pair
cable
FG
CPU Unit + Analog Option Board
Item Specifications
Voltage Output Current Output
Output signal range 0 V to 10 V ---
External output allowable load resistance 2 k
Ω
min. ---
External output impedance 0.5
Ω
max. ---
Resolution 1/4,000 (full scale) ---
Overall accuracy 25°C: ±0.5% 0 to 55°C: ±1.0% ---
D/A conversion data 0000 to 0FA0 hex ---
Conversion time
Inner conversion time 2ms/point
Refresh time > 6ms basing on baud rate and PLC cycle time
Isolation method None
Current consumption 5 VDC: 60 mA max.