| 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. |
Accel-
eration/
decel-
eration
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 G-series and G5-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. |
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Item list of CJ1W-NC[][]4
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