Omron CJ1W-NC214, CJ1W-NC434, CJ1W-NC234 DATASHEET
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
Motion controllers
These position control units support positioning control via pu lse-train outputs. Positioning is performed using trapezoidal o r Scurve acceleration and deceleration. Models are available with 2 or 4 axes control, and can be used in combination wi th 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
Personal computer
software: CX-One
CJ1 series
Position control unit
External signals for
Axis 1 and Axis 2
Emergency stop input,
home and limit switche s
CJ1W-NC__4
Axes 1
Axes 2
Servo
relay unit
G-Series
Servo motors
SmartStep 2
Servo drive
I/O signals
(CN1 connector)
K
Pos
unit
Accurax G5
Servo drive
I/O signals
(CN1 connector)
Accurax G5
Servo motors
51Position control units
Specifications
Model CJ1W-NC214
Unit name Position control unit
Classification CJ series special I/O units
Applicable PLCs CJ series
Unit numbers 0 to 94
Maximum number of units per rack 5 units
Maximum number of units per CJ system 20 units (3 expansion racks maximum)
Occupied unit 2
Control method Open-loop control by pulse train output
Control output signals CJ1W-NC@14: Open-collector output
Controlled axes 2 4
I/O allocations Axis operating memory area Allocated in one of the following areas(u ser-specified): CIO, WR, HR, DM or EM area.
Control function Operating modes Direct operation or memory operation
Linear interpolation 2 axes maximum 4 axes maximum
Circular interpolation 2 axes maximum
Interrupr feeding Independent, 2 axes Independent, 4 axes
Position data -2147483648 to +2147483647
No. of positions 500 per axis
Speed data 4 Mpps maximum speed (NC234/434) or 500 kpps (NC214/414)
No. of speeds 500 per axis
Acceleration/deceleration times 0 to 250 s (time to max. speed)
Acceleration/deceleration curves Trapezoidal or S-curve
Auxiliary functions Override Multiplies the axis command speed by a specified ratio. Value: 0.01% to 500.00%
Sofware limits Limits software operation for controlling positioning
Backlash compensation Compensates for the amount of play in the mechanical system according to a set value
Torque limit Restrics the torque upper limit during position control
Saving data in PCU Flash memory
Ambient operating temperature 0 to 55°C
External power supply 24 VDC
Internal current consumption 270 mA or less at 5 VDC 310 mA or less at 5 VDC
Weight 170 g 220 g
CJ1W-NC234
CJ1W-NC@34: Line-driver output
CJ1W-NC414
CJ1W-NC434
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
Connect
s 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.
52 Motion controllers
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