Omron NJ501-1400 User Manual page 384

11 Troubleshooting
Event name No Home Input
Meaning There was no home signal input during the homing operation. Or, a limit signal was detected before there was a home
input.
Source Motion Control Function Module
Error attributes Level
Effects User program
System-defined Variable
variables
_MC_AX[*].MFaultLvl.Active
Cause and Assumed cause
correction
• There was no home signal input
during the homing operation.
• A limit signal was detected before
there was a home input.
Attached None
information
Precautions/ None
Remarks
Event name No Home Proximity Input
Meaning There was no home proximity signal input during the homing operation.
Source Motion Control Function Module
Error attributes Level
Effects User program
System-defined Variable
variables
_MC_AX[*].MFaultLvl.Active
Cause and Assumed cause
correction
There was no home proximity signal
input during the homing operation
when a home proximity input signal
was specified.
Attached None
information
Precautions/ None
Remarks
11-38
Source details
Minor fault Recovery
Continues. Operation
Data type
BOOL
Correction
Check the home input settings and
wiring and correct them so that the
home signal is input during homing
based on the operation specifications
of the MC_Home instruction. Also, set
the system so that the home signal is
detected before the limit signals.
Source details
Minor fault Recovery
Continues. Operation
Data type
BOOL
Correction
Check the home proximity input set-
tings and wiring and correct them so
that the home proximity signal is input
during homing based on the operation
specifications of the MC_Home
instruction.
Event code 742C0000 hex
Axis Detection
timing
Error reset Log category
The axis stops with the stop method for the homing execu-
tion status.
Name
Axis Minor Fault Occurrence
Prevention
Set the system so that the home sig-
nal is input during the homing opera-
tion. Make sure that the home signal
is detected before a limit signal. Also
check to make sure there are no wir-
ing problems with the home input.
Event code 742D0000 hex
Axis Detection
timing
Error reset Log category
The axis stops with the stop method for the homing execu-
tion status.
Name
Axis Minor Fault Occurrence
Prevention
Set the system so that the home prox-
imity signal is input during the homing
operation. Also check to make sure
there are no wiring problems with the
home proximity input.
NJ-series CPU Unit Motion Control User's Manual (W507)
During instruc-
tion execution
System
During instruc-
tion execution
System