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Start error 85 ERR.1 Restart error
Speed-position mode
restart signal (Y26)
was turned on when
positioning was
complete in the
speed-position control
switch mode.
The operation does
not start.
Start operation using
Forward start signal
(Y22) or Reverse start
signal (Y23).
Speed-position mode
restart signal (Y26)
was turned on in the
position control mode.
Start operation using
Absolute positioning
start signal (Y21),
Forward start signal
(Y22), or Reverse start
signal (Y23).
Operation
error
87 ERR.1
Movement
outside the
stroke limit
range
A movement amount
change was
attempted with a value
that moves the
workpiece outside the
stroke limit range.
The movement
amount does not
change.
Set movement amount
so that the workpiece is
positioned within the
stroke limit range after
the move.
90
ERR.2
Servo READY
OFF while BUSY
Servo READY signal
(READY) turned off
during major
positioning, OPR, or
JOG operation.
The operation runs
freely.
Check the drive unit,
and turn on Servo
READY signal
(READY).
91
Upper limit
signal OFF while
BUSY
Upper limit signal
(FLS) turned off during
major positioning,
OPR, or JOG
operation.
The operation
decelerates and
stops.
Return the workpiece to
a position within the
stroke limit range using
JOG operation.
92
Lower limit
signal OFF while
BUSY
Lower limit signal
(RLS) turned off
during major
positioning, OPR, or
JOG operation.
Error
category
Error
code
(decimal)
Error
classification
Error name Description
Operation at the
error occurrence
Action