3-43
3   Error Tables
NJ-series Troubleshooting Manual (W503)
3-1 Errors by Source 
3
3-1-3  Errors in the Motion Control Function Module  
54770000 hex Cam Table 
Data Error 
during Cam 
Motion
The phases are not 
in ascending order 
in the cam table.
• Data containing cam table 
phases that are not in ascend-
ing order was detected during 
cam motion.
• The phase and displacement of 
the start point in the cam table 
were not 0 during cam opera-
tion.
• The phase of the end point in 
the cam table when converted 
to pulses was not 1 pulse or 
greater during cam operation.
S NJ-series 
CPU Unit 
Motion Con-
trol User’s 
Manual (Cat. 
No. W507)
54850000 hex Immediate 
Stop Instruc-
tion Executed
An Immediate Stop 
(MC_ImmediateSto
p) instruction was 
executed.
• An Immediate Stop instruction 
was executed.
S Same as 
above.
54860000 hex Axes Group 
Immediate 
Stop Instruc-
tion Executed
An Axes Group 
Immediate Stop 
(MC_GroupImmedi
ateStop) instruc-
tion was executed.
• A Group Immediate Stop 
instruction was executed.
S Same as 
above.
64450000 hex Positive Soft-
ware Limit 
Exceeded
The position 
exceeded the posi-
tive software limit 
while the axis is in 
motion.
• The position exceeded the posi-
tive software limit.
S Same as 
above.
64460000 hex Negative 
Software 
Limit 
Exceeded
The position 
exceeded the nega-
tive software limit 
while the axis is in 
motion.
• The position exceeded the neg-
ative software limit.
S Same as 
above.
64470000 hex In-position 
Check Time 
Exceeded
The in-position 
check was not com-
pleted within the 
monitoring time.
• Time is required to complete 
positioning.
S Same as 
above.
64480000 hex Following 
Error Limit 
Exceeded
The error between 
the command cur-
rent position and 
actual current value 
exceeded the Fol-
lowing Error Over 
Limit Value.
• The positioning operation has 
poor following performance and 
the actual motion is slower than 
the command.
S Same as 
above.
64490000 hex Immediate 
Stop Input
The immediate stop 
input turned ON.
•
An immediate stop input signal 
w
as detected.
• The immediate stop input signal 
is not connected correctly or 
the logic setting for the immedi-
ate stop input is wrong.
S Same as 
above.
644A0000 hex Positive Limit 
Input 
Detected
The positive limit 
input turned ON.
• A positive limit input signal was 
detected.
• The positive limit input signal is 
not connected correctly or the 
logic setting for the positive limit 
input is wrong.
S Same as 
above.
644B0000 hex Negative 
Limit Input 
Detected
The negative limit 
input turned ON.
• A negative limit input signal was 
detected.
• The negative limit input signal is 
not connected correctly or the 
logic setting for the negative 
limit input is wrong.
S Same as 
above.
Event code Event name Meaning Assumed cause
Level
Reference
Maj Prt Min Obs Info