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6 Troubleshooting
6 - 56
NJ-series NJ Robotics CPU Unit User’s Manual (W539)
Event name
Negative Limit Input
Event code
64440000 hex
Meaning
An instruction for a motion in the negative direction was executed when the negative limit input was ON.
Source
Motion Control Function Module
Source details
Axis/axes group
Detection
timing
At instruction
execution
Error
attributes
Level
Minor fault
Recovery
Error reset
Log category
System
Effects
User program
Continues.
Operation
If "axis" is given for the source details, operation is
not possible for relevant axis.
If "axes group" is given for the source details, opera-
tion is not possible for relevant axes group.
System-
defined
variables
Variable
Data type
Name
_MC_AX[*].MFaultLvl.Active
BOOL
Axis Minor Fault Occurrence
_MC_GRP[*].MFaultLvl.Active
BOOL
Axes Group Minor Fault Occur-
rence
Cause and
correction
Assumed cause
Correction
Prevention
An instruction for a motion in the
negative direction was executed
when the negative limit input was
ON, or an instruction for a motion
with no direction specification was
executed when the negative limit
input was ON. An axes group
motion control instruction was
executed when the negative limit
input was ON.
Execute an error reset and then
perform a recovery operation in
the positive direction. If the error
occurred during an axes group
motion control instruction, disable
the axes group and then perform
the above operation. If this error
occurs again, check the connec-
tion of the negative limit signal, the
logic setting for the negative limit
input, and the execution condi-
tions for the start command, and
correct any mistakes. Check the
logic settings both in the axis
parameters and in the slave set-
tings.
Check to make sure there are no
problems with the negative limit
signal connection, the logic set-
ting for the negative limit input, and
the execute conditions for the
instruction. Check the logic set-
tings both in the axis parameters
and in the slave settings.
Attached
information
Depends on the source details.
Axis: 0
Axes group: Logical axis number
Precautions/
Remarks
None
Summary of Contents for NJ501-4300
Page 13: ...11 CONTENTS NJ series NJ Robotics CPU Unit User s Manual W539 ...
Page 40: ...Revision History 38 NJ series NJ Robotics CPU Unit User s Manual W539 ...
Page 90: ...2 Features of NJ Robotics CPU Unit 2 40 NJ series NJ Robotics CPU Unit User s Manual W539 ...
Page 204: ...5 Vision Robot Integrated Simulation 5 6 NJ series NJ Robotics CPU Unit User s Manual W539 ...
Page 308: ...6 Troubleshooting 6 104 NJ series NJ Robotics CPU Unit User s Manual W539 ...
Page 333: ...I 1 I NJ series NJ Robotics CPU Unit User s Manual W539 Index ...
Page 335: ......