CJ1W-NC@@4
Position control units
Point-to-point positioning controller with pulse train output and motion control unit functionality
•Position control units with 2 or 4 axes
•Position and speed control
•Linear interpolation and feeder control function
•Electronic CAM profiles and axes synchronization
•Positioning of 500 points per axis done from memory
•S-curve acceleration/deceleration, origin search, backlash compensation, and other features are also supported.
•Programming languages: ladder, function blocks.
•Use Windows-based support software to easily create positioning data and store data and parameters in files.
Function
These position control units support positioning control via pulse-train outputs. Positioning is performed using trapezoidal or S- curve acceleration and deceleration. Models are available with 2 or 4 axes control, and can be used in combination with servo drives or stepping motors what accept pulse-train control. When these units are used in a CJ2 PLC CPU can perform also synchronous operation by use of electronic CAMs and other function blocks.
System configuration
Motion controllers
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Personal computer |
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software: CX-One |
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CJ1 series |
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Position control unit |
Axes 1 |
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CJ1W-NC__4 |
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Axes 2 |
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Accurax G5 |
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SmartStep 2 |
Servo drive |
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Servo drive |
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External signals for |
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I/O signals |
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Axis 1 and Axis 2 |
Servo |
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(CN1 connector) |
I/O signals |
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relay unit |
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K |
(CN1 connector) |
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Pos |
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unit |
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Emergency stop input, |
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home and limit switches |
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Accurax G5 |
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G-Series |
Servo motors |
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Servo motors |
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Position control units |
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Specifications
Model |
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CJ1W-NC214 |
CJ1W-NC414 |
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CJ1W-NC234 |
CJ1W-NC434 |
Unit name |
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Position control unit |
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Classification |
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CJ series special I/O units |
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Applicable PLCs |
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CJ series |
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Unit numbers |
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0 to 94 |
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Maximum number of units per rack |
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5 units |
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Maximum number of units per CJ system |
20 units (3 expansion racks maximum) |
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Occupied unit |
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2 |
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Control method |
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Open-loop control by pulse train output |
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Control output signals |
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CJ1W-NC@14: Open-collector output |
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CJ1W-NC@34: Line-driver output |
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Controlled axes |
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2 |
4 |
I/O allocations |
Axis operating memory area |
Allocated in one of the following areas(user-specified): CIO, WR, HR, DM or EM area. |
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Control function |
Operating modes |
Direct operation or memory operation |
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Linear interpolation |
2 axes maximum |
4 axes maximum |
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Circular interpolation |
2 axes maximum |
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Interrupr feeding |
Independent, 2 axes |
Independent, 4 axes |
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Position data |
-2147483648 to +2147483647 |
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No. of positions |
500 per axis |
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Speed data |
4 Mpps maximum speed (NC234/434) or 500 kpps (NC214/414) |
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No. of speeds |
500 per axis |
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Acceleration/deceleration times |
0 to 250 s (time to max. speed) |
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Acceleration/deceleration curves |
Trapezoidal or S-curve |
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Auxiliary functions |
Override |
Multiplies the axis command speed by a specified ratio. Value: 0.01% to 500.00% |
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Sofware limits |
Limits software operation for controlling positioning |
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Backlash compensation |
Compensates for the amount of play in the mechanical system according to a set value |
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Torque limit |
Restrics the torque upper limit during position control |
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Saving data in PCU |
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Flash memory |
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Ambient operating temperature |
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0 to 55°C |
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External power supply |
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24 VDC |
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Internal current consumption |
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270 mA or less at 5 VDC |
310 mA or less at 5 VDC |
Weight |
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170 g |
220 g |
Nomenclature
CJ1W-NC214/234/414/434 - position control unit
CJ1W-NC414/-NC434 CJ1W-NC214/-NC234
Axes 1 and 2 connector Connects to the servomotor drive or stepping motor driver (2-axis control).
Axes 3 and 4 connector Connects to the servomotor drive or stepping motor driver (2-axis control).
LED indicator Indicates the operation status of the PCU.
Unit number setting switch Set the PCU unit number.
External signal connector for axes 1 and 2 Connects to external input.
External signal connector and
MPG connector for axes 3 and 4
Connects to external input and MPG.
Axes 1 and 2 connector Connects to the servomotor drive or stepping motor driver (2-axis control).
External signal connector and MPG connector for axes 1 and 2 Connects to external input and MPG.
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Motion controllers |
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