CJ-series Process Analog I/O Unit CJ1W-PDC15

International Standards

• The standards are abbreviated as follows: U: UL, U1: UL (Class I Division 2 Products for Hazardous Locations), C: CSA, UC: cULus, UC1: cULus (Class I Division 2 Products for Hazardous Locations), CU: cUL, N: NK, L: Lloyd, and CE: EC Directives.
• Contact your OMRON representative for further details and applicable conditions for these standards.

Isolated-type DC Input Units

Unit  classi-  fication	Product name	Input  points	Signal  range  selection	Conver- sion  speed  (resolu-  tion)	Accuracy (at  ambient  tempera-  ture of  25 ° C)	External connec- tion	No. of unit  num-  bers  allo-  cated	Current  consump-  tion (A)		Model	Stand- ards
								5 V	24 V
CJ1  Special I/O  Units	Iso-  lated-  type  DC  Input  Units	2  inputs	DC voltage:  0 to 1.25 V,  -1.25 to  1.25 V,  0 to 5 V,  1 to 5 V,  -5 to 5 V,  0 to 10 V,  -10 to 10 V, ±10 V  selectable  range  DC current: 0 to 20 mA, 4 to 20 mA	Conver-  sion  speed:  10 ms/  2 inputs  Resolu-  tion:  1/64,000	Accuracy:  ± 0.05%  of F.S.	Re-  movable terminal  block	1	0.18	0.09 *	CJ1W-PDC15	UC1,  CE

* This is for an external power supply, and not for internal current consumption.

Item		Specifications
Model		CJ1W-PDC15
Applicable Controller		CJ/NJ Series
Unit classification		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 data exchange with CPU Unit	Special I/O Unit Area (Operation Data)	10 words/Unit Direct Current Input Unit to CPU Unit: All process values, process value alarms (LL, L, H, HH), rate-of-change values, rate-of-change alarms (L, H), disconnection alarms, cold junction sensor errors, adjustment period end/notice
	DM Area words allocated to Special I/O Units (Setting parameter)	100 words/Unit CPU Unit to Direct Current Input Unit: Input signal type, scaling of process value in industrial units, process value alarm setting (L, H), inrush input upper limit, inrush input upper limit time, zero/span adjustment value, Square root function. Temperature input signal type, input range (user set), scaling of process value data to be stored in allocated words in CIO area, rate-of-change input range, scaling of rate-of-change data, number of items for moving average, process value alarm setting (LL, L, H, HH), rate-of-change alarm setting (L, H), zero/span adjustment value
	Expansion Control/ Monitor Area (Expansion Operation Data)	35 words/Unit CPU Unit to Direct Current Input Unit: Bits for beginning or resetting the hold function selection, adjustment period control, control bits Direct Current Input Unit to CPU Unit: Adjustment period notices, peak and bottom values, top and valley values, integral values
	Expansion Setting Area (Expansion Setting parameter)	46 words/Unit CPU Unit to Direct Current Input Unit: Expansion Setting Area settings, adjustment period control, peak and bottom detection, top and valley detection, integral value calculation
Number of inputs		2
Input signal type		4 to 20 mA, 0 to 20 mA, 0 to 10 V, -10 to 10 V, 0 to 5 V, -5 to 5 V, 1 to 5 V, 0 to 1.25 V, -1.25 to 1.25 V (separate for each input), and ±10-V user-set range (specified range within -10.000 V to 10.000 V)
Scaling		Data to be stored in the allocated words in the CIO area must be scaled (Any minimum and maximum values can be set.) (2 inputs set separately.) Data can be converted at 0% to 100%.
Data storage in the CIO Area		The value derived from carrying out the following processing in order of the actual process data in the input range is stored in four digits hexadecimal (binary values) in the allocated words in the CIO Area. 1) Mean value processing → 2) Scaling → 3) Zero/span adjustment → 4) Square root calculation →  5) Output limits
Accuracy (25 ° C)		±0.05%
Temperature coefficient		±0.008%/°C
Resolution		1/64,000
Input signal range		For 4 to 20 mA, 0 to 20 mA, 0 to 10 V, 0 to 5 V, 1 to 5 V, 0 to 1.25 V inputs: -15 to 115% For -10 to 10 V, -5 to 5 V, -1.25 to 1.25 V inputs: -7.5 to 107.5%
Input impedance		For current inputs: 250 Ω (typical) For voltage inputs: 1 MΩ min.
Warmup time		10 min
Conversion period		10 ms/2 inputs
Maximum time to store data in CPU Unit		Conversion period + one CPU Unit cycle
Input error detection		Check only for 4 to 20 mA and 1 to 5 V. Error detected for -17.2% (1.25 mA, 0.3125 V) or less and 112.5% (22 mA, 5.5 V) or more.
Operation at input disconnection		For 4 to 20 mA and 1 to 5 V: Stores -15% process value. For all other ranges: Stores same process value as 0-V or 0-mA inputs.
Input disconnection detection delay time		Approx. 1 s.
Function	Mean value  processing (input filter)	Calculates the moving average for the past specified number of process values (1 to 128 can be specified), and stores that value in the CIO Area as the process value.
	Process value alarm	Process value 4-point alarm (LL, L H, HH), hysteresis, and ON-delay timer (0 to 60 s) are available.
	Rate-of-change calculation	Calculates the amount of change per comparison time interval (1 to 16 s).
	Rate-of-change alarm	Rate-of-change 2-point alarm (H, L), alarm hysteresis, and ON-delay timer (0 to 60 s are available, shared with process value alarm).
	Square root calculation	When the maximum value for process value scaling is A and the minimum value is B, Drop-out: Output approx. 7% max. linear (output = input) characteristic Note 1. The square root function can only be used when the maximum scaling value is greater than the minimum scaling value. The square root will not be found if the maximum is smaller than the minimum. Note 2. When the square root function is used, set the scaling values after square root calculation (e.g., for flow rates or other values) for the process value scaling A and B settings.
	Adjustment period control	When zero/span adjustment is executed, the date is internally recorded at the Unit. When the preset zero/span adjustment period and the notice of days remaining set in the Expansion Setting Area have elapsed, this function turns ON a warning flag to give notice that it is time for readjustment.
	Peak and bottom detection	Detects the maximum (peak) and minimum (bottom) analog input values, from when the Hold Start Bit (output) allocated to the Expansion Control/Monitor Area turns ON until it turns OFF. These values are stored as the peak and bottom values in the Expansion Control/Monitor Area.
	Top and valley detection	This function detects the top and valley values for analog inputs, from when the Hold Start Bit (output) allocated to the Expansion Control/Monitor Area turns ON until it turns OFF. These values are stored as the top and valley values in the Expansion Control/Monitor Area.
	Integral value calculation	This function calculates the analog input value's time integral. The integral value is calculated and output to the Expansion Control/Monitor Area when the Integral Value Calculation Start Bit in the Expansion Control/Monitor Area is turned ON.
Isolation		Between inputs and between inputs and Controller signals: Isolation by transformer and photocoupler.
Insulation resistance		20 MΩ (at 500 V DC) between all inputs
Dielectric strength		Between inputs: 1,000 V AC, at 50/60 Hz, for 1 min, leakage current 10 mA max.
External connections		Terminal block (detachable)
Unit number settings		Set by rotary switches on front panel, from 0 to 95.
Indicators		Four LED indicators on front panel (for normal operation, errors detected at the Direct Current Input Unit, and errors detected at the CPU Unit).
Front panel connector		Sensor input connector terminal block (detachable)
Current consumption		5 V DC at 180 mA max.
External power supply		24 V DC +10%/-15% 90 mA max., inrush current: 20 A for 1 ms max. (The external 24-VDC power supply must be isolated.)
Dimensions		31 × 130 × 65 mm (W × H × D)
Weight		150 g max.
Standard accessories		Short bars (for current input)