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CJ1W-AD04U – Omron Special I/O Units

USD $ 369.61

SKU CJ1W-AD04U Category

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Item Specifications
Model CJ1W-AD04U
Applicable Controller CJ/NJ Series
Type of Unit CJ-series Special I/O Unit
Mounting position CPU Rack or Expansion Rack
Maximum number of Units 40 (within the allowable current consumption and power consumption range)
Unit numbers 00 to 95 (Cannot duplicate Special I/O Unit numbers.)
Areas for
exchanging
data with
the CPU
Unit
Special I/O Unit
Area words in
the CIO Area
(Operation Data)
10 words/Unit
IIsolated-type Universal Input Unit to CPU Unit:
All process values, process value alarms (L, H), conversion data enabled flag, input
errors, cold junction sensor errors
Special I/O Unit
words in the DM
Area (Setting
parameter)
100 words/Unit
CPU Unit to Isolated-type Universal Input Unit:
Input type, scaling upper and lower limits, process value alarm setting (L, H), zero/
span adjustment value, alarm ON delay time, alarm hysteresis, Expansion Setting
Area settings
Expansion Setting
Area (Expansion
Setting
parameter)
1 word/Unit
CPU Unit to Isolated-type Universal Input Unit: Process value alarm output
Number of inputs 4
Input type Platinum resistance thermometer: Pt100 (JIS, IEC), Pt1000, or JPt100
Thermocouple: K, J, T, L, R, S, or B
Current: 4 to 20 mA, or 0 to 20 mA
Voltage: 1 to 5 V, 0 to 5 V, or 0 to 10 V
Each input can be set independently.Each input can be set independently.
Scaling (Voltage and current
inputs)
Data to be stored in the allocated words in the CIO area must be scaled (with user-
set minimum and maximum values for data and offsets). The inputs are set
individually.
Data storage in the Special I/O
Unit Area in the CIO Area
Voltage inputs and current inputs:
The values derived from carrying out the following processing in order of the actual
process data in the input range are stored in four digits hexadecimal (binary values)
in the allocated words in the Special I/O Unit Area.
1) Scaling → 2) Zero/span adjustment → 3) Output limits
Temperature input:
The values derived from carrying out the following processing in order of the actual
process data in the input range are stored in four digits hexadecimal (binary values)
in the allocated words in the Special I/O Unit Area.
1) °C/°F conversion → 2) Zero/span adjustment → 3) Output limits
(The stored data is always stored ten times the value of the actual temperature.)
Accuracy (25 °C)
(These values do not include
the sensor error.)
Platinum resistance thermometers: (±0.3% of PV or ±0.8°C, whichever is greater) ±1
digit max.
Typical thermocouple inputs: (±0.3% of PV or ±1.5°C, whichever is greater) ±1 digit
max.
Special cases:
The accuracy of L is ±2°C ±1 digit max.
The accuracy of K and T at -100°C or less is ±2°C ±1 digit max.
The accuracy of R and S at 200°C or less is ±3°C 1 digit max.
The accuracy of B at 400°C or less is not specified.
Voltage inputs and current inputs: (±0.3% FS) ±1 digit max.
Temperature coefficient ±100 ppm/°C max. (for full scale)
Resolution 1/12,000 (for voltage or current input)
(Please refer to the Input Types and Input Ranges on Data Sheet for details on
temperature input.)
Input signal range Voltage inputs and current inputs:
-5% to 105% of measurable input range set in scaling
Temperature inputs:
±20°C or ±20°F for the high or low limits of the sensor range
Maximum rated input Voltage Input: ±15 V
Current Input: ±30 mA
Input impedance Temperature: 10 kΩ min.
Voltage Input: 1 MΩ min.
Current Input: 250 Ω (rated value)
Warm-up time 30 min
Thermocouple inputs Internal temperature sensor is used for cold junction compensation.
Platinum resistance
thermometers
Measurement method: 3-wire method
Allowable lead wire resistance: 20 Ω max. per wire
Input detection current: 1.1 mA
A/D conversion time 250 ms/4 inputs
Maximum time to store data in
CPU Unit
Conversion period + one CPU Unit cycle
Input error detection An input error can be detected. (except for voltage and current inputs of 0 to 20 mA,
0 to 5 V, 0 to 10 V)
Detection level
Temperature input: If the temperature exceeds the high or low limit of the sensor
range by 20°C or 20°F.
+1 to +5 V: input signal < 0.3 V
4 to 20 mA: input signal < 1.2 mA
Input Error Flag turns ON when a disconnection occurs or each input value is out of
input range.
Process value clamp direction can be specified when input error occurs.
Process value alarm Two process value alarms (L, H), hysteresis, and ON-delay timer (0 to 60 s) can be
set.
Bits of process value alarm can be copied to selectable addresses in the Expansion
Setting Area settings.
Isolation Between inputs and Controller signals, and between inputs: Isolation by transformer
for power supply, and by photocoupler for signals.
Insulation resistance 20 MΩ (at 500 V DC) between all inputs
Dielectric strength Between all inputs: 500 V AC, at 50 or 60 Hz, for 1 min, leakage current 1 mA max.
External connections Terminal block (detachable)
Indicators Three LED indicators on front panel (for normal operation, errors detected at the
Universal Input Unit, and errors detected at the CPU Unit).
Unit number settings Set by rotary switches on front panel, from 0 to 95.
Current consumption
(supplied by Power Supply Unit)
5 V DC at 320 mA max.
Dimensions 31 × 90 × 65 mm (W × H × D)
Weight 150 g max.

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