Item list of CJ1W-PTS
| Item | Specifications | |
|---|---|---|
| Model | CJ1W-PTS15 | |
| Applicable Controller | CJ Series | |
| Unit classification | CJ-series Special I/O Unit | |
| Mounting position | CJ-series CPU Rack or CJ-series 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 Thermocouple Input Unit to CPU Unit: All process values, process value alarms (LL, L, H, HH), conversion data enabled flags, sensor errors. |
|
DM Area words allocated to Special I/O Units (Setting parameter) |
100 words/Unit CPU Unit to Thermocouple Input Unit: Temperature sensor type, input range (user set), process value alarm setting (L, H), zero/span adjustment value. |
|
|
Expansion Control/ Monitor Area words (Expansion Operation Data) |
35 words/Unit CPU Unit to Thermocouple Input Unit: Hold function selection start/reset, adjustment period control, control bits Thermocouple Input Unit to CPU Unit: Adjustment period warnings/notices (for each input), peak and bottom values, top and valley values |
|
|
Expansion Setting Area words (Expansion Setting parameter) |
46 words/Unit CPU Unit to Thermocouple Input Unit: Expansion Setting Area settings, adjustment period control, peak and bottom detection, top and valley detection |
|
|
Number of temperature sensor inputs |
2 | |
| Temperature sensor type | The sensor type, input range, and scaling can be set individually for each of 2 inputs, which are each selectable from B, E, J, K, L, N, R, S, T, U, WRe5-26, PL II, and mV. |
|
| Scaling | Data to be stored in the allocated words in the CIO area must be scaled (with the minimum and maximum values set by user) (2 inputs set separately). For example, data can be stored 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) Output limits |
|
| Accuracy (25 ° C) | ±0.05% (Depends on the Sensor used and the measured temperature. Refer to Accuracy by Sensor Type and Measured Temperature Range on Data Sheet for details.) |
|
| Temperature coefficient | ±0.01%/°C (For full scale of electromotive force. *) | |
| Resolution | 1/64000 | |
|
Cold junction compensation error |
±1°C, at 20 ±10°C | |
| Maximum signal input | ±120 mV | |
| Input impedance | 20 kΩ min. | |
|
Input disconnection detection current |
0.1 μA (typical) | |
| Warmup time | 45 min | |
| Response time | 100 ms (travel time from input 0% to 90%, for ±100 mV step input and with moving average for 4 samples) |
|
| Conversion period | 10 ms/2 inputs | |
|
Maximum time to store data in CPU Unit |
Conversion period + one CPU Unit cycle | |
| Disconnection detection | Detects disconnections at each input and turns ON the Disconnection Detection Flag. Hardware detection time: Approx. 0.5 s max. The process value overrange direction for when a disconnection occurs can be specified. (High: 115% of set input range; low: -15% of set input range) |
|
| Function |
Mean value processing (input filter) |
Calculates the moving average for the specified number of process values (1 to 128), and stores that value in the CIO Area as the process value. |
| Process value alarm | Process value 4-point alarm (LL, L, H, HH), alarm 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 (L, H), alarm hysteresis (shared with process value alarm), and ON- delay timer (0 to 60 s, shared with process value alarm) are available. |
|
|
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 number of days notice have elapsed (allocated in Expansion Setting Area), this function turns ON a warning flag to give notice that it is time for readjustment. |
|
|
Peak and bottom detection |
This function 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, and stores them 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, and stores them in the Expansion Control/Monitor Area. |
|
| Isolation | Between inputs and Controller signals, and between inputs: Isolation by transformer for power supply, and by photocoupler for signals. Cold junction compensation circuit: No isolation from input 2 |
|
| Insulation resistance | 20 MΩ (at 500 V DC) between 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 Thermocouple Input Unit, errors related to the CPU Unit, and use of external power supply). |
|
| Front panel connector | Sensor input connector terminal block (detachable) | |
| Effect on CPU Unit cycle time | 0.3 ms | |
| Current consumption | 5 V DC at 180 mA max. | |
| External power supply | 24 VDC +10%/-15% 60 mA max., inrush current: 20 A for 1 ms max. (The external 24-VDC power supply must be isolated.) |
|
| Dimensions | 31 × 90 × 65 mm (W × H × D) | |
| Weight | 150 g max. | |
| Standard accessories | Two cold junction sensors (installed in terminal block) | |
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