Omron NY532-5400 Troubleshooting Manual page 443

Event name Homing Opposite Direction Limit Input Detected
Meaning The limit signal in the direction opposite to 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
NY-series Troubleshooting Manual (W564)
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.
3 Error Descriptions and Corrections
Event code 74240000 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.
During instruc-
tion execution
System
3
3-367