A-9
Appendices
NJ-series CPU Unit Software User’s Manual (W501)
A-1 Specifications
App
A-1-3 Function Specifications
Motion
control
Auxiliary
functions
Parameters
Writing MC settings
Some of the axis parameters or axes group parameters are
overwritten temporarily.
Changing axis parame-
ters (*)
Some of the axis parameters can be accessed or changed
from the user program.
Count modes
You can select either Linear Mode (finite length) or Rotary
Mode (infinite length).
Unit conversions
You can set the display unit for each axis according to the
machine.
Accelera-
tion/deceler-
ation control
Automatic accelera-
tion/deceleration control
Jerk is set for the acceleration/deceleration curve for an axis
motion or axes group motion.
Changing the accelera-
tion and deceleration
rates
You can change the acceleration or deceleration rate even
during acceleration or deceleration.
In-position check
You can set an in-position range and in-position check time
to confirm when positioning is completed.
Stop method
You can set the stop method to the immediate stop input sig-
nal or limit input signal.
Re-execution of motion control instruc-
tions
You can change the input variables for a motion control
instruction during execution and execute the instruction
again to change the target values during operation.
Multi-execution of motion control
instructions (Buffer Mode)
You can specify when to start execution and how to connect
the velocities between operations when another motion con-
trol instruction is executed during operation.
Continuous axes group motions (Transi-
tion Mode)
You can specify the Transition Mode for multi-execution of
instructions for axes group operation.
Monitoring
functions
Software limits The movement range of an axis is monitored.
Following error
The error between the command current value and the
actual current value is monitored for an axis.
Velocity, acceleration
rate, deceleration rate,
torque, interpolation
velocity, interpolation
acceleration rate, and
interpolation decelera-
tion rate
You can set and monitor warning values for each axis and
each axes group.
Absolute encoder support
You can use an OMRON G5-series Servomotor with an
Absolute Encoder to eliminate the need to perform homing
at startup.
Input signal logic inversion*
You can inverse the logic of immediate stop input signal,
positive limit input signal, negative limit input signal, or home
proximity input signal.
External interface signals
The Servo Drive input signals listed on the right are used.
Home signal, home proximity signal, positive limit signal,
negative limit signal, immediate stop signal, and interrupt
input signal
Unit (I/O)
manage-
ment
EtherCAT
slaves
Maximum number of slaves 192
Basic I/O
Chattering and noise
countermeasures
Input response times are set.
NX Units*
You can use NX Units through the Communications Coupler
Unit.
CJ-series
Units
Maximum number of Units 40
Basic I/O
Units
Chattering and noise
countermeasures
Input response times are set.
Load short-circuit pro-
tection and I/O discon-
nection detection
Alarm information for Basic I/O Units is read.
Item NJ501- NJ301-
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