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MELSEC-A
14 TROUBLESHOOTING
14.3 List of warnings
14.3.1 Warnings detected by AD75
The following table shows the warning details and remedies when warnings occur.
Division of
warning
Warning
code
Warning name Description Action at occurrence of warning
000 (Normal)
10
FeRAM count
warning
FeRAM access count exceeded
9
10
9
times.
11
Automatic
update count
over
When the absolute position of the zero point is
automatically updated in the infinite length
positioning control of control unit "degree", the
FeRAM access count exceed 9.9999
10
9
times.
12
Automatic
update failure
When the absolute position of the zero point is
automatically updated in the infinite length
positioning control of control unit "degree",
write to FeRAM is not completed normally.
Operation continues.
100
Start during
operation
A start request is issued when the axis is busy. Operation continues.
101
Current value
change when
BUSY
The current value is changed when the axis is
busy.
The current value change request is ignored.
104
Restart not
possible
A restart command is issued in other than the
“stopped” axis status.
Operation continues.
105
Illegal target
axis
The target axis of reading/writing is out of the
setting range.
•
The warning is for the reference axis.
•
Reading/writing is not made.
106
Illegal
positioning data
No.
The positioning data number to be read/written
is out of the setting range.
•
The warning is for the target axis.
•
Reading/writing is not made.
107
Illegal writing
pattern
The writing pattern to be read/written is out of
the setting range.
•
The warning is for the target axis.
•
Reading/writing is not made.
108
Illegal flash
ROM writing
A flash ROM writing request is issued when
AD75 READY (X0) is OFF.
•
The warning is for axis 1.
•
The flash ROM is not written.
109
Writing when
BUSY
A request is issued when the axis is busy.
The warning is for the target axis of the writing
request.
Common
111 In PLC READY
A request to write the flash ROM is issued
when PLC READY is ON (during request to
teach).
The warning is for axis 1.
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