Omron NY532-5400 Troubleshooting Manual page 390

3 Error Descriptions and Corrections
Event name Negative Limit Input
Meaning An instruction for a motion in the negative direction was executed when the negative limit input was ON.
PLC Function Module
Source
Error attri-
Level
butes
Effects User program
Variable
System-
_MC_AX[*].MFaultLvl.Active
defined
_MC_GRP[*].MFaultLvl.Active
variables
Assumed cause
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
Cause and
group motion control instruction
correction
was executed when the negative
limit input was ON.
Attached Information 1: Error Location
Attached Information 2: Error Location Details (Rung Number). For a program section, the rung number
from the start of the section is given. For ST, the line number is given.
Attached
Attached Information 3: Names of the Instruction and Instruction Instance Where the Error Occurred. If
information
there is more than one possible instruction, information is given on all of them. Nothing is given if the
instruction cannot be identified.
Attached Information 4: Expansion Error Code (ErrorIDEx)
Precautions/ If a program is changed after an error occurs, the attached information that is displayed may not be cor-
Remarks rect.
3-314
Source details
Observation
Recovery
Continues.
Operation
Data type
BOOL
BOOL
Correction
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 con-
ditions for the start command,
and correct any mistakes. Check
the logic settings both in the axis
parameters and in the slave set-
tings.
Event code 5401 6444 hex
Instruction Detection
timing
---
Log category
The relevant instruction will end according to speci-
fications.
Name
Axis Minor Fault Occurrence
Axes Group Minor Fault Occur-
rence
Prevention
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.
NY-series Troubleshooting Manual (W564)
At instruction
execution
System