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CHAPTER 14 TROUBLESHOOTING
14
14.3 Details of Errors
14.3.4 Error code list
Start error
74 ERR.2
Near-point dog
signal ON at
start
Near-point dog signal
(DOG) is on at the
start of OPR in the
near-point dog
method.
The operation does
not start.
Return the workpiece to
a position away from
the near-point dog
using JOG operation or
major positioning, then
execute OPR.
80
ERR.1
READY signal
OFF at start
(PLC READY
signal OFF at
start)
QD73A1 READY
signal (X11) or PLC
READY signal (Y2D)
is off at the start of
major positioning,
OPR, or JOG
operation.
Turn on PLC READY
signal (Y2D).
81
BUSY signal ON
at start
An operation start is
attempted when
BUSY signal (X14) is
on.
Make an interlock using
a sequence program so
that no operation starts
when BUSY signal
(X14) is on.
82
STOP signal ON
at start
An operation start is
attempted when Stop
signal (Y27) is on.
Turn off Stop signal
(Y27), and start the
operation again.
83
Outside the
stroke limit
range at start
An operation start is
attempted when the
workpiece is outside
the stroke limit range.
• Return the workpiece
to a position within
the stroke limit range
using JOG operation.
• Execute OPR.
• Set the workpiece to
a position within the
stroke limit range by
changing the current
value.
84
OPR complete
signal ON at
start
An OPR start is
attempted when OPR
complete signal (X13)
is on.
• OPR cannot be
started in succession
(only in the near-
point dog method).
• Move the workpiece
to the position before
the near-point dog
using JOG operation
or major positioning,
then start another
OPR.
Error
category
Error
code
(decimal)
Error
classification
Error name Description
Operation at the
error occurrence
Action