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SitemapSYSMAC CJ-series Position Control Units (High-Speed type)
CJ1W-NC[][]4
![CJ1W-NC[][]4](/product/thumbnail/family/l_2051.jpg)
Motion Control Capabilities with Unit Synchronization and Even Higher Speed
Data Sheet (723KB)
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General Specifications
| Specification item | Model | |
| CJ1W-NC214/234 | CJ1W-NC414/434 | |
| Power supply voltage | 5 VDC (unit) | |
| 24 VDC (external power supply) | ||
| Allowable power supply voltage range | 21.6 to 26.4 VDC (external power supply) | |
| Internal current consumption | 5 VDC, 270 mA maximum | 5 VDC, 310 mA maximum |
| Current consumption of external power supply | 24 VDC NC214 13 mA maximum NC234 44 mA maximum | 24 VDC NC414 26 mA maximum NC434 90 mA maximum |
| Dimensions | 90 × 51 × 65 (H × W × D) | 90 × 62 × 65 (H × W × D) |
| Weight | 170 g maximum | 220 g maximum |
| Ambient operating temperature | 0 to 55 ° C | |
| Mounting position | CJ-series CPU Rack or CJ-series Expansion Rack | |
| Maximum number of units per rack | 5 units | |
| Maximum number of units per CJ system | 20 units (when up to 3 expansion racks are connected) | |
| Occupied unit | No. 2 | |
| Applicable standards | EC directives | |
Models other than above conform to the general specifications of the SYSMAC CJ series.
Performance Specifications
| Specification item | Model | ||
| CJ1W-NC214/234 | CJ1W-NC414/434 | ||
| Applicable PLCs | CJ-series | ||
| Number of occupied inputs/outputs | Number of words | 18CH * | |
| Controlled drivers | Servo Drive of pulse train input type or stepping motor drivers NC214/414: Open collector output type NC234/434: Line driver output type | ||
| Pulse output method | Phase difference pulse output, forward/reverse direction pulse output, pulse + direction output | ||
| Controls | Control method | Open-loop control by pulse train output | |
| Number of controlled axes | 2 axes | 4 axes | |
| Units of control | Pulse, mm, inch, degree | ||
| Positioning functions | Memory operation, direct operation | ||
| Independent operation | Independent, 2 axes | Independent, 4 axes | |
| Linear interpolation | 2 axes maximum | 4 axes maximum | |
| Circular interpolation | 2 axes maximum | 2 axes maximum | |
| Speed control | Independent, 2 axes | Independent, 4 axes | |
| Interrupt Constant- pitch Feed | Independent, 2 axes | Independent, 4 axes | |
| Position command | Data | - 2147483648 to +2147483647 | |
| Number of data | 500 per task (4 tasks per unit) | ||
| Speed command | Data | Position control: 1 to 2147483647 Speed control: - 2147483648 to 2147483647 However, this limits the maximum output frequency based on whether the maximum speed is 4 Mpps (NC234/434) or 500 kpps (NC214/414). | |
| Number of data | 500 per task | ||
| Acceleration/ deceleration time | Data | 0 to 250000 ms | |
| Number of data | 500 per task | ||
| Function | Override | 0.01% to 500.00% (settable for each axis) | |
| Software limits | - 2147483647 to 2147483646 command unit (Settable for each axis) | ||
| Backlash Compensation | 0 to 50000 command unit (settable for each axis) | ||
| MPG and external encoder counter input | Number of input words | 1 word (switchable for each controlled axis) | |
| Input interface | Photocoupler input | ||
| Maximum response frequency | 500 kHz | ||
| Feedback pulse counter input | Number of input words | 4 words (1 word per axis) | |
| Input interface | Line receiver input | ||
| Maximum response frequency | NC234/434: 4 MHz (phase difference multiplication of 4 times: 1 MHz) NC214/414: 500 kHz (phase difference multiplication of 4 times: 125 kHz) | ||
*This indicates the number of occupied words of special I/O Unit area. In addition, this occupies areas that correspond to up to 144 words according to the number of axes and functions which you use.
Functional Specifications
| Function item | Description | ||
| Control function | Single axis control | Absolute movement | Specify the absolute/relative target position and target speed directly in the ladder program to perform positioning. |
| Relative movement | |||
| Speed control | Specify the target speed directly in the ladder program to perform speed feed. | ||
| Interrupt Feeding | Externally issue an interrupt input during absolute movement, relative movement or speed control to feed the machine by a constant amount to perform positioning. | ||
| Rotational axis control | Rotational axes suitable for feeder and index table control are supported. In addition to forward/reverse direction positioning, you can also specify short- cut operation. | ||
| Target position and target speed change | Change the target position or target speed during absolute movement, relative movement or speed control. | ||
| Multi-axis control | Linear interpolation | This control starts/ends the operations of multiple axes simultaneously and connects the start position to target position of each axis by a straight line. Linear interpolation of up to 4 axes is possible. | |
| Circular interpolation | You can combine 2 desired axes and control each axis in a manner which the axes draw a circular path. Three methods are available to specify a circular arc: "Specification of target position and center point", "specification of target position, radius and direction" and "target position and passing points". | ||
| Memory operation | Automatic operation and continuous operation | Set the target positions, target speeds and operation patterns in the PCU beforehand to perform a series of operations automatically. Continuous positioning and speed changes are also possible. | |
| Sequence function | Memory operation data incorporates a sequence feature that allows for repetition of a given operation, start/end of operation data via external inputs, and so on. Accordingly, the PCU can perform various operation sequences without affecting the ladder program of PLC. | ||
| Manual operation function | Origin Search | This function uses an external sensor, etc. to detect the mechanical origin of the system. You can select a desired origin search operation for your system from 15 different origin search operation patterns. | |
| Origin Return | This function performs the return operation to the established mechanical origin. | ||
| Present Position Present | It changes the present position to the specified data and establishes the origin. | ||
| Deceleration stop | The operating axis decelerates to a stop. | ||
| JOG Operation | This function feeds the axis in the forward/reverse direction at a constant speed. | ||
| Inching operation | The axis inches in the forward/reverse direction. | ||
| MPG operation | Connect a manual pulsar and perform manual feed. | ||
| Auxiliary control function | Command unit setting | You can set a desired unit of control for each axis according to the machine. | |
| Acceleration/ deceleration control | Auto acceleration/ deceleration control | This function automatically generates an acceleration/deceleration curve for axis operation. You can select the trapezoidal curve or the S-curve based on a tertiary function. | |
| Acceleration/ deceleration time change | You can change the acceleration/deceleration time during acceleration/ deceleration. | ||
| Acceleration/ deceleration point switch | You can select one of three methods to connect speeds in different operation patterns during continuous-pattern memory operation. | ||
| Override | This function changes the speed of the axis which is currently in positioning operation. | ||
| Backlash Compensation | This compensates for the mechanical plays to increase the positioning accuracy. | ||
| M code | You can output M codes to implement interlocking with external machines during memory operation. | ||
| Zone setting | You can set a desired zone and assess whether the present position is inside the zone. Up to 3 zones are settable for each axis. | ||
| Feedback pulse counter | A feedback pulse counter input is available for each axis. You can connect encoder pulse outputs from a Servo Drive to monitor deviation from the command position, etc. | ||
| Absolute encoder | You can input encoder pulses from a Servo Drive to a feedback pulse counter to use a motor with absolute encoder. This function supports OMRON W- series and G-series Servomotors with absolute encoder. | ||
| Teaching | This function enables loading of the present position into memory operation position data. It supports not only the present command position, but also the present position from the feedback pulse counter. | ||
| Torque limit output | An output signal is available for operating the torque limit switch input of a Servo Drive. You can turn this output signal ON/OFF directly in the ladder program. Also, Origin Search by holding supports automatic switching of torque limits. | ||
| Monitor function | Software limits | You can set forward/reverse direction software limits of axis operation. If the positioning target exceeds software limit, it is detectable at the start through a command value check. | |
| Position or speed error monitor | The PCU can monitor the position or speed error between the present command position and present feedback position to generate an error and stop the axis operation upon detection of an excessive error. | ||
| Error between axes monitor | It can also monitor the error between axes during linear interpolation to generate an error and stop the axes operation upon detection of an excessive error. | ||
Caution: In the interenst of product improvement, specifications are subject to change without notice.
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