Description
Even Smaller
Positioning of up to 16 axes can be controlled with a body the size of one CJ-series Unit.
The compact body provides a perfect fit to meet the need for downsizing of equipment for multi-axis control.
Single-cable Connection with Flexible Wiring Placement
With MECHATROLINK-II, connecting to the Servo Drive is easy. Just use a single cable (2-core shielded twisted-pair cable). Reduced wiring, with a total cable length of 50 m (or 30 m for 16 axes), allows more freedom in constructing systems.
Less Time Spent on Startup and Maintenance
Servo parameters can be set from the PLC.
This means that settings and adjustments can be performed from one location rather than having to connect to each Servo Drive separately.
Simple Expansion
An easily expandable system can be constructed that is just as efficient now with a few axes or later with up to 16 axes.
Linked Operation of Multiple Axes with MA Functionality
The addition of an Interpolation Compensation Axis Stop Mode Setting and Interaxial Allowance Deviation Setting to linear interpolation compensation enables easier setting of linked operation between axes.
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.
CJ-series Units
| Unit type |
Product name | Specifications | No. of unit numbers allocated |
Current consumption (A) |
Model | Stand- ards |
||
|---|---|---|---|---|---|---|---|---|
| Control output interface | No. of axes |
5 V | 24 V | |||||
| CJ1 CPU Bus Units |
Position Control Unit with MECHATROLINK- II interface  |
Control commands executed by MECHATROLINK-II synchronous communications. Direct operation by ladder programming. Control mode: Position control, speed control, or torque control |
2 | 1 | 0.36 | — | CJ1W-NC271 | UC1, CE |
| 4 | CJ1W-NC471 | |||||||
| 16 | CJ1W-NCF71 | |||||||
| 16 | CJ1W-NCF71-MA | |||||||
Note: This unit cannot be used with the Machine Automation Controller NJ-series.
Support Software
| Product name |
Specifications | Number of licenses |
Media | Model | Stand- ards |
|---|---|---|---|---|---|
| FA Integrated Tool Package CX-One Ver. 4.[] |
The CX-One is a comprehensive software package thatintegrates Support Software for OMRON PLCs andcomponents. CX-One runs on the following OS. OS: Windows XP (Service Pack 3 or higher, 32-bit version)/Windows Vista (32-bit/64-bit version)/ Windows 7 (32-bit/64-bit version)/Windows 8 (32- bit/64-bit version)/Windows 8.1 (32-bit/64-bit version)/Windows 10 (32-bit/64-bit version) CX-One Ver. 4.[] includes CX-Motion-NCF Ver. |
1 license * |
DVD | CXONE-AL01D-V4 | — |
* Multi licenses (3, 10, 30, or 50 licenses) and DVD media without licenses are also available for the CX-One.
MECHATROLINK-related Devices and Cables (Manufactured by Yaskawa Corporation)
| Name | OMRON model number | Yaskawa model number | |
|---|---|---|---|
| MECHATROLINK-II Cables (with ring core and USB connector on both ends) |
0.5 m | FNY-W6003-A5 | JEPMC-W6003-A5 |
| 1.0 m | FNY-W6003-01 | JEPMC-W6003-01 | |
| 3.0 m | FNY-W6003-03 | JEPMC-W6003-03 | |
| 5.0 m | FNY-W6003-05 | JEPMC-W6003-05 | |
| 10.0 m | FNY-W6003-10 | JEPMC-W6003-10 | |
| 20.0 m | FNY-W6003-20 | JEPMC-W6003-20 | |
| 30.0 m | FNY-W6003-30 | JEPMC-W6003-30 | |
| MECHATROLINK-II Terminating Resistor | Terminating resistance | FNY-W6022 | JEPMC-W6022 |
| MECHATROLINK-II Repeater | Communications Repeater | — | JEPMC-REP2000-E |
Note: MECHATROLINK-related Devices and Cables are manufactured by Yaskawa Corporation, but they can be ordered
directly from OMRON using the OMRON model numbers. (Yaskawa-brand products will be delivered even when
they are ordered from OMRON.)
directly from OMRON using the OMRON model numbers. (Yaskawa-brand products will be delivered even when
they are ordered from OMRON.)
General Specifications
| Item | Specifications |
|---|---|
| Model | CJ1W-NC271/471/F71 (-MA) |
| Internal current consumption | 360 mA max. at 5 V DC |
| Dimensions | 31 × 90 × 65 mm (W × H × D) |
| Weight | 95 g max. |
| Ambient operating temperature | 0 to 55°C |
| Approved standards | CE, cULus, and C-tick |
Specifications not listed above conform to general CJ Series specifications.
Functions and Specifications
| Item | Specifications | |
|---|---|---|
| Unit classification | CPU Bus Unit | |
| Applicable PLCs | CJ Series | |
| Possible unit number settings | 0 to F | |
| I/O allocations |
Common Operating Memory Area |
Words allocated in CPU Bus Unit Area: 25 words (15 output words, 10 input words) |
| Axis Operating Memory Area |
Allocated in one of the following areas (user-specified): CIO, Work, Auxiliary, Holding, DM, or EM Area. Number of words allocated: 50 words (25 output words, 25 input words) × Highest axis No. used |
|
| Compatible devices | OMRON G5-series Servo Drives (Built-in MECHATROLINK-II communications) OMRON G-series Servo Drives (Built-in MECHATROLINK-II communications) |
|
| Control method | Control commands executed using MECHATROLINK-II synchronous communications. | |
| Maximum number of controlled axes |
CJ1W-NC271: 2 axes, CJ1W-NC471: 4 axes, CJ1W-NCF71: 16 axes | |
| Control units |
Position command unit |
Command unit:Depends on the Electronic Gear Setting in the Servo Parameters. Default setting: Pulses |
| Speed command unit for position control |
Command units/s | |
| Acceleration/ deceleration speeds for position control |
10,000 command units/s2 | |
| Speed command unit for speed control |
0.001% of the motor’s momentary maximum rotation speed | |
| Torque command unit for torque control |
0.001% of the motor’s momentary maximum torque | |
| Control command range |
Position command range |
2,147,483,648 to 2,147,483,647 (command units) |
| Speed command range for position control |
0 to 2,147,483,647 (command units/s) | |
| Acceleration/ deceleration speeds for position control |
1 to 65,535 (10,000 command units/s2) | |
| Speed command range for speed control |
-199.999% to 199.999% The upper limit of the speed command range depends on the specifications of the Servo Drive. |
|
| Torque command range for torque control |
-199.999% to 199.999% The upper limit of the torque command range depends on the specifications of the Servo Drive. |
|
| Control functions |
Servo lock/unlock | Creates (Servo lock) or releases (Servo unlock) the position loop on the PCU. |
| Position control | Positions to an absolute position or relative position according to the target position and target speed specified from the ladder program. |
|
| Origin determination |
Origin search: Establishes the origin using the specified search method. Present position preset: Changes the present position to a specified position to establish the origin. Origin return: Returns the axis from any position to the established origin. Absolute encoder origin: Establishes the origin using a Servomotor that has an absolute encoder, without having to use an origin search. |
|
| Jogging | Outputs pulses at a fixed speed in the forward rotation or reverse rotation direction. |
|
| Interrupt feeding | Performs positioning by moving the axis a fixed amount when an external interrupt input is received while the axis is moving. |
|
| Speed control | Performs speed control by sending a command to the Servo Drive speed loop. | |
| Torque control | Performs torque control by sending a command to the Servo Drive current loop. | |
| Stop functions | Deceleration stop: Decelerates the moving axis to a stop. Emergency stop: Positions the moving axis for the number of pulses remaining in the deviation counter and then stops the axis. |
|
| Auxiliary functions |
Acceleration/ deceleration curves |
Sets one of the following: a trapezoidal (linear) curve, an exponential curve, or an S-curve (moving average). |
| Torque limit | Restricts the output torque during axis operation. | |
| Override | Multiplies the axis command speed by a specified ratio. Override: 0.01% to 327.67% |
|
| Servo parameter transfer |
Reads and writes the Servo Drive parameters from the ladder program in the CPU Unit. |
|
| Monitoring function |
Monitors the control status of the Servo Drive, such as the command coordinate positions, feedback position, current speed, and torque. |
|
| Software limits | Limits software operation within the positioning range during position control. | |
| Backlash compensation |
Compensates for the amount of play in the mechanical system according to a set value. |
|
| Deviation counter reset |
The position deviation in the Servo Drive’s deviation counter can be reset to 0 (unit version 1.3 or later). |
|
| External I/O |
Position Control Unit |
One MECHATROLINK-II interface port |
| Servo Drive I/O | Forward/reverse rotation limit inputs, origin proximity inputs, external interrupt inputs 1 to 3 (can be used as external origin inputs) |
|
| Self-diagnostic functions | Watchdog, flash memory check, memory corruption check | |
| Error detection functions | Overtravel, Servo Drive alarm detection, CPU error, MECHATROLINK communications error, Unit setting error |
|
MECHATROLINK Specifications
| Item | Specifications |
|---|---|
| Communications protocol | MECHATROLINK-II |
| Baud rate | 10 Mbps |
| Maximum transmission distance | 50 m *1 |
| Minimum distance between stations | 0.5 m |
| Transmission media | Shielded, twisted-pair cables |
| Maximum No. of stations | 30 slave stations max. *2 |
| Topology | Bus |
| Transfer cycle | 250 μs to 8 ms |
| Communications method | Master-slave, totally synchronous |
| Encoding | Manchester encoding |
| Data length | 17 bytes/32 bytes selectable *3 |
*1. This distance is the total length of the cable connected between devices. However, the maximum length depends on
the number of devices connected and whether Repeaters are used.
*2. Up to 16 devices can be connected to the CJ1W-NCF71(-MA), up to 2 devices can be connected to the CJ1W-NC271,
and up to 4 devices can be connected to the CJ1W-NC471.
*3. The PCU data length is fixed at 32 bytes.
the number of devices connected and whether Repeaters are used.
*2. Up to 16 devices can be connected to the CJ1W-NCF71(-MA), up to 2 devices can be connected to the CJ1W-NC271,
and up to 4 devices can be connected to the CJ1W-NC471.
*3. The PCU data length is fixed at 32 bytes.
(Unit: mm)
CJ1W-NC271
CJ1W-NC471
CJ1W-NCF71
CJ1W-NCF71-MA
![CJ1W-NC[]71 Dimensions 2 CJ1W-NC271_Dim](http://www.ia.omron.com/Images/1528_dm_113-105214.gif)
|
Catalog Name
|
Catalog Number
[size] |
Last Update
|
|---|---|---|
 CJ1W-NC[]71 Data Sheet |
– [981KB] |
May 12, 2016 |
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