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MELSEC-Q
15 TROUBLESHOOTING
Classification
of errors
Error
code
Error name Error Operation status at error occurrence
524
Control system
setting error
• The control system setting value is
outside the specified limit.
• The number of control axes differs
from the previous data when
continuous positioning control or
continuous path control is to be
exercised for continuously.
• Machine OPR, fast OPR, or speed-
position or position-speed switching
control was performed in the
wiring-less mode.
• The NOP instruction was set to the
control system of positioning data
No. 600.
• Any value other than 0 was set at
buffer memory address 1906 (use
prohibited area).
At start: The system will not operate.
During operation:
The system stops with the
setting (deceleration
stop/sudden stop) of the
detail parameter 2 Sudden
stop selection
(stop group 3).
(Note that the deceleration stop only
occurs during the manual pulse
generator operation.)
525
Sub point setting
error
Either of the following applies in the
circular interpolation with sub points
designated.
• Start point = sub point
• End point = sub point
• Start point, end point, and sub point
are in line with each other.
• Sub point address and center point
address are outside the range of
–2147483648 to 2147483647.
526
End point setting
error
• Start point is equal to end point in
the circular interpolation with sub
points designated.
• End point address is outside the
range of –2147483648 to
2147483647 in the circular
interpolation with auxiliary point
designation and center point
designation.
At start: The system will not operate.
During operation:
The system stops
immediately.
527
Center point setting
error
Circular interpolation with center
point designation applicable to one
of the followings.
• Start point = Center point
• End point = Center point
• Center point address is outside the
range of –2147483648 to
2147483647.
At start: The system will not operate.
During operation:
The system stops
immediately.
530
Outside address
range
• In the speed-position switching
control and the position-speed
switching control, the setting value
of a positioning address is
negative.
• In ABS1, ABS2, ABS3 and ABS4,
the setting value of a positioning
address is outside the range of 0 to
359.99999 degrees.
Positioning
operation
532
Simultaneous start
not possible
Among the axes to be started
simultaneously, there is an axis on
which an error other than this error
occurs.
At start: The system will not operate.
During operation:
The system stops
immediately 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.)