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MELSEC-Q
15 TROUBLESHOOTING
Classification
of errors
Error
code
Error name Error Operation status at error occurrence
514
Outside new current
value range
The new current address is outside
the ranges of 0 to 359.99999, where
the control unit is set to "degree".
515
New current value
not possible
• The operation pattern "continuous
path control" is set in the
positioning data in which the
control system "current value
changing" is set.
• The control system "current value
changing" is set in the positioning
data following the positioning data
in which the operation pattern
"continuous path control" is set.
The current value is not changed.
516
Continuous path
control not possible
• The continuous path control is
designated using a control system
which is not allowed to use for
continuous path control such as
speed control, speed-position
switching control, position-speed
switching control, fixed-feed, and
current value change.
• The previous data such as those
on speed control, speed-position
switching control, position-speed
switching control, fixed-feed, and
current value change shows a
continuous path control.
• The continuous positioning control
is designated for speed control or
position-speed switching control.
At start, the system will not operate.
518
Outside operation
pattern range
• The operation pattern set value is 2.
519
Interpolation while
interpolation axis
BUSY
Interpolation is started during the
operation of the interpolation axis.
520
Unit group
unmatched
The reference and interpolation axis
units are different at the parameter
"interpolation speed designation
method" setting of "composite
speed".
Positioning
operation
521
Illegal interpolation
description
command
• In 2-axis interpolation, the axis to
be interpolated is the self axis or an
axis not present.
At start: The system will not operate.
During operation:
The system stops with the
setting (deceleration
stop/sudden stop) of the
detailed parameter 2
Sudden stop selection
(stop group 3).
(Note that the deceleration stop only
occurs during the manual pulse
generator operation.)
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