Omron NY532-5400 Troubleshooting Manual page 444

3 Error Descriptions and Corrections
Event name Homing Direction Limit Input Detected
Meaning The limit signal in the homing direction was detected during a homing operation.
Motion Control Function Module
Source
Error attri-
Level
butes
Effects User program
System- Variable
defined
_MC_AX[*].MFaultLvl.Active
variables
Assumed cause
The Operation Selection at Nega-
tive Limit Input or Operation
Selection at Positive Limit Input
parameter is set to No reverse
turn.
Cause and
correction
The location of the homing input
signal sensors, homing settings,
and homing start position cause a
limit input to be reached.
The input signal sensor wiring is
incorrect or the sensor is faulty.
Attached None
information
Precautions/ None
Remarks
Event name Homing Limit Inputs Detected in Both Directions
Meaning The limit signals in both directions were detected during a homing operation.
Motion Control Function Module
Source
Error attri-
Level
butes
Effects User program
System- Variable
defined
_MC_AX[*].MFaultLvl.Active
variables
Assumed cause
The wiring of the limit signal is
incorrect.
The limit sensor is installed in the
Cause and
wrong location.
correction
The contact logic of the limit sig-
nal is not correct.
The limit sensor failed.
Attached None
information
Precautions/ None
Remarks
3-368
Source details
Minor fault
Recovery
Continues.
Operation
Data type
BOOL
Correction
To prevent errors at the limit
inputs, set the Operation Selec-
tion at Negative Limit Input and
Operation Selection at Positive
Limit Input parameters to
Reverse turn.
Correct the location of the input
signal sensors, homing settings,
and homing start position so that
a limit input is not reached.
Correct the wiring of the input sig-
nal sensor or replace the sensor.
Source details
Minor fault
Recovery
Continues.
Operation
Data type
BOOL
Correction
Correct the wiring of the limit sig-
nal.
Correct the installation locations
of the limit sensors so that they
do not turn ON at the same time.
Correct the contact logic
(N.C./N.O.) of the limit signal.
Replace the limit sensor.
Event code 7425 0000 hex
Axis Detection
timing
Error reset
Log category
The axis stops with the stop method for the homing
execution status.
Name
Axis Minor Fault Occurrence
Prevention
Check to see if any of the condi-
tions that are given as causes
exist in advance.
Event code 7426 0000 hex
Axis Detection
timing
Error reset
Log category
The axis stops with the stop method for the homing
execution status.
Name
Axis Minor Fault Occurrence
Prevention
Check to see if any of the condi-
tions that are given as causes
exist in advance.
NY-series Troubleshooting Manual (W564)
During instruc-
tion execution
System
During instruc-
tion execution
System