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MELSEC-Q
15 TROUBLESHOOTING
Classification
of errors
Error
code
Error name Error Operation status at error occurrence
507
Software stroke
limit+
• Positioning is carried out at a
position beyond the software stroke
limit upper limit.
• The positioning address and new
current value exceed the software
stroke limit upper limit.
• In the circular interpolation by the
designation of the sub points, the
sub points exceed the software
stroke limit upper limit.
Positioning
operation
508
Software stroke
limit–
• Positioning is carried out at a
position beyond the software stroke
limit lower limit.
• The positioning address and new
current value exceed the software
stroke limit lower limit.
• In the circular interpolation by the
designation of the sub points, the
sub points exceed the software
stroke limit lower limit.
At start: The system will not operate.
In the analysis of new current value:
Current value is not
changed.
During operation:
• The system stops
immediately when the
positioning address during
position control (including
position control in speed-
position switching control or
position-speed switching
control) is switched to the
data outside the software
stroke limit range.
• The system makes a stop at
the setting (normal
deceleration stop only) of
sudden stop selection (stop
group 3) in the detailed
parameter 2 when the
current feed value or
machine feed value during
speed control (including
speed control in speed-
position switching control or
position-speed switching
control) or during manual
control falls outside the
software stroke limit range.
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