![background image](http://html1.mh-extra.com/html/omron/nj501-1300/nj501-1300_user-manual_742205251.webp)
9-69
9 Motion Control Functions
NJ-series CPU Unit Motion Control User’s Manual (W507)
9-8 Other F
u
n
ction
s
9
9-8-6
F
ollo
w
ing Error
Monitor
in
g
•
An axis error will occur if the software limits are enabled for the command position and the com-
mand position leaves the range.
•
An axis error will occur if the software limits are enabled for the actual position and the actual posi-
tion leaves the range.
Additional Information
Software limits can be enabled when the Count Mode is set to Linear Mode and home is defined.
Software limits are disabled in the following situations no matter what axis parameters have been
set.
•
When Count Mode is set to Rotary Mode.
•
When home is not defined.
•
During homing.
For details on writing MC settings, refer to the MC_Write (Write MC Setting) instruction in the
NJ-series
Motion Control Instructions Reference Manual
(Cat. No. W508).
Following error is the difference between the command position and the actual position of an axis. The
MC Function Module monitors the following error every motion control period.
If the value of the following error exceeds the Following Error Over Value that is set in the axes parame-
ters, Following Error Limit Exceeded minor fault level error occurs. If it exceeds the Following Error
Warning Value, a Following Error Warning observation occurs. Monitoring the following error is disabled
during execution of the holding operation for homing.
z
Axis Parameters That Are Related to Monitoring the Following Error
You can set the check values for monitoring the following error by setting the appropriate axis
parameters. Set the Following Error Warning Value so that it is less than the Following Error Over
Value.
Set the axis parameters from the Sysmac Studio.
9-8-6
Following Error Monitoring
Parameter name
Function
Setting range
Default
Following Error
Over Value
Set the excessive following error check
value. Set 0 to disable the excessive follow-
ing error check. (Unit: command units)
Non-negative long
reals
0
Following Error
Warning Value
Set the following error warning check value.
Set 0 to disable the following error warning
check. (Unit: command units)
Non-negative long
reals that are less
than or equal to the
Following Error
Over Value
0
Summary of Contents for NJ501-1300
Page 12: ...Sections in this Manual 10 NJ series CPU Unit Motion Control User s Manual W507...
Page 18: ...16 NJ series CPU Unit Motion Control User s Manual W507 CONTENTS...
Page 22: ...Read and Understand this Manual 20 NJ series CPU Unit Motion Control User s Manual W507...
Page 34: ...Revision History 32 NJ series CPU Unit Motion Control User s Manual W507...
Page 86: ...3 Configuring Axes and Axes Groups 3 28 NJ series CPU Unit Motion Control User s Manual W507...
Page 122: ...5 Motion Control Parameters 5 24 NJ series CPU Unit Motion Control User s Manual W507...
Page 158: ...6 Motion Control Programming 6 36 NJ series CPU Unit Motion Control User s Manual W507...
Page 166: ...7 Manual Operation 7 8 NJ series CPU Unit Motion Control User s Manual W507...
Page 182: ...8 Homing 8 16 NJ series CPU Unit Motion Control User s Manual W507...
Page 346: ...10 Sample Programming 10 92 NJ series CPU Unit Motion Control User s Manual W507...
Page 422: ...Appendices A 18 NJ series CPU Unit Motion Control User s Manual W507...
Page 423: ...Index 1 NJ series CPU Unit Motion Control User s Manual W507 I Index...
Page 430: ...Index 8 NJ series CPU Unit Motion Control User s Manual W507 Index...