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Industrial Automation
CJ1W-CT021
CJ-series High-speed Counter Unit
High-Speed, Flexible Control With A Wide Array of Features. This unit is available for CJ/NJ controller.
Related Contents
Application Solutions
last update: April 1, 2025
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.
|
Unit type |
Product name |
Specifications |
No. of unit numbers allocated |
Current consumption (A) |
Model | Standards | |||
|---|---|---|---|---|---|---|---|---|---|
|
Countable channels |
Encoder A and B inputs, pulse input Z signals |
Max. counting rate |
5 V | 24 V | |||||
|
CJ1 Special I/O Units |
Highspeed Counter Unit  |
2 | Open collector Input voltage: 5 VDC, 12 V, or 24 V (5 V and 12 V are each for one axis only.) |
50kHz | 4 | 0.28 | - | CJ1W-CT021 | UC1, N, L, CE |
| RS-422 line driver | 500kHz | ||||||||
Note: The following functions become unavailable when it is used with the NJ-series CPU unit.
- Counter value capture using allocation area (CIO)
- The capture, Stop/capture/continue, Stop/capture/reset/continue, and Capture/reset functions using External
Control Input Function
- Pulse rate range control using Output Control Mode
- The pulse rate measurement function
- Because the NJ Series has no power OFF interrupt task, operation cannot be restarted from the position at which
the power was interrupted.
- The IORD/IOWR instruction
- Starting of External Interrupt Task by Output and External Control Input
- Counter value capture using allocation area (CIO)
- The capture, Stop/capture/continue, Stop/capture/reset/continue, and Capture/reset functions using External
Control Input Function
- Pulse rate range control using Output Control Mode
- The pulse rate measurement function
- Because the NJ Series has no power OFF interrupt task, operation cannot be restarted from the position at which
the power was interrupted.
- The IORD/IOWR instruction
- Starting of External Interrupt Task by Output and External Control Input
Accessories
The High-Speed Counter Unit includes the 40-pin solder-type connectors C500-CE404 (socket: Fujitsu FCN-361J040-AU, cover: Fujitsu FCN-360C040-J2/cover: OTAX N360C040J2).
Applicable Connectors
| Name | Connection | Specifications | Model | ||
|---|---|---|---|---|---|
| 40-pin
Connectors |
Soldered |  |
Connector | Fujitsu FCN-361J040-AU | C500-CE404 |
| Connector Cover | Fujitsu FCN-360C040-J2
OTAX N360C040J2 |
||||
| Right angle type, included with Unit | |||||
| Crimped | |
Housing | Fujitsu FCN-363J040
OTAX N363J040 |
C500-CE405 | |
| Contactor | Fujitsu FCN-363J-AU
OTAX N363JAU |
||||
| Connector Cover | Fujitsu FCN-360C040-J2
OTAX N360C040J2 |
||||
| Right angle type | |||||
| Pressure welded |  |
Fujitsu FCN-367J040-AU/F,
w/o connector cover |
C500-CE403 | ||
| Soldered |  |
40-pin, soldered, w/connector cover | C500-CE401 | ||
Connector-Terminal Conversion Unit and Connection Cables
| Product Name | Specifications | Model | |||
|---|---|---|---|---|---|
| For Connecting with
Terminal Block |
Connecting Cables | Normal wiring | Cable length: 0.5m | XW2Z-050B | |
| Cable length: 1.0m | XW2Z-100B | ||||
| Cable length: 1.5m | XW2Z-150B | ||||
| Cable length: 2.0m | XW2Z-200B | ||||
| Cable length: 3.0m | XW2Z-300B | ||||
| Cable length: 5.0m | XW2Z-500B | ||||
| Connector-Terminal
Conversion Unit |
Slim | 40-pin M3 screw terminals | XW2D-40G6 | ||
last update: April 1, 2025
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