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
	Special I/O Unit words in the DM Area (Setting parameter)	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
	Expansion Setting Area (Expansion Setting parameter)	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.