Omron NJ501-1400 User Manual page 378

11 Troubleshooting
Event name Home Undefined during Coordinated Motion
Meaning Home of the logical axis became undefined during axes group motion or while decelerating to a stop.
Source Motion Control Function Module
Error attributes Level
Effects User program
System-defined Variable
variables
_MC_GRP[*].MFaultLvl.Active
Cause and Assumed cause
correction
The command position or actual posi-
tion overflowed or underflowed for a
logical axis in an axes group motion
or a logical axis that was decelerating
to a stop and the home definition was
lost.
A slave communications error
occurred for a logical axis and home
became undefined during axes group
motion or while decelerating to a stop.
A slave for a logical axis left the net-
work and home became undefined
during axes group motion or while
decelerating to a stop.
Attached None
information
Precautions/ None
Remarks
Event name Servo Main Circuit Power OFF
Meaning The main circuit power of the Servo Drive turned OFF while the Servo was ON.
Source Motion Control Function Module
Error attributes Level
Effects User program
System-defined Variable
variables
_MC_AX[*].MFaultLvl.Active
Cause and Assumed cause
correction
The main circuit power of the Servo
Drive was interrupted while the Servo
was ON.
Attached None
information
Precautions/ None
Remarks
11-32
Source details
Minor fault Recovery
Continues. Operation
Data type
BOOL
Correction
Correct the program so that the axis
operates within ranges that do not
cause overflows or underflows in the
command position or actual position.
Correct the slave communications
error and define home.
Connect the disconnected Slave to
the network again and define home.
Source details
Minor fault Recovery
Continues. Operation
Data type
BOOL
Correction
Turn ON the main circuit power of the
Servo Drive for the axis where the
error occurred, reset the error, and
then turn ON the Servo.
Event code 64590000 hex
Axes group Detection
timing
Error reset Log category
The axes group decelerates to a stop.
Name
Axes Group Minor Fault Occurrence
Prevention
Write the program so that the axis
operates within ranges that do not
cause overflows or underflows in the
command position or actual position.
None
Do not disconnect slaves for logical
axes from the network during axes
group motions or while decelerating
to a stop.
Event code 74210000 hex
Axis Detection
timing
Error reset Log category
The Servo for the axis turns OFF.
Name
Axis Minor Fault Occurrence
Prevention
Turn OFF the Servo, then turn OFF
the main circuit power of the Servo
Drive.
NJ-series CPU Unit Motion Control User's Manual (W507)
During instruc-
tion execution
System
Whenever Servo
is ON
System