Mitsubishi MELSEC-Q QD77MS, User Manual

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Chapter 16 Troubleshooting
Classification
of errors
Error
code
Error name Error Operation status at error occurrence
504
Outside linear
movement amount
range
• When the parameter "interpolation speed
designation method" performs a linear
interpolation in setting a "composite
speed", the axis movement amount for
each positioning data exceeds
1073741824(2
30
).
• The positioning address is
–360.00000 or less or 360.00000 or more
using INC instruction, where the control
unit is set to "degree" and software stroke
limit upper limit is not equal to the
software stroke limit lower limit.
At start : The system does not
operate.
During operation : The system stops
immediately.
506
Large arc error
deviation
When an arc is interpolated by the
designation of the center point, a difference
between a radius of start point-center point
and a radius of end point-center point
exceeds the parameter "Circular
interpolation error allowable limit". At start : The circular interpolation
control by center point
designation is not
executed.
During operation : The system stops
immediately.
507 Software stroke limit+
• The positioning is executed at a position
exceeding the upper limit of the software
stroke limit.
• The positioning address and the new
current value exceed the upper limit of the
software stroke limit.
• In the circular interpolation with sub points
designated, the sub point exceeds the
upper limit of the software stroke limit.
• During the speed control mode/the torque
control mode/the continuous operation to
torque control mode, the current feed
value exceeded the upper limit of the
software stroke limit.
Positioning
operation
errors
508 Software stroke limit–
• The positioning is executed at a position
exceeding the lower limit of the software
stroke limit.
• The positioning address and the new
current value exceed the lower limit of the
software stroke limit.
• In the circular interpolation with sub points
designated, the sub point exceeds the
lower limit of the software stroke limit.
• During the speed control mode/the torque
control mode/the continuous operation to
torque control mode, the current feed
value exceeded the lower limit of the
software stroke limit.
At operation start:
The system does 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.
At speed control mode/torque control mode/
continuous operation to torque control mode:
The mode is switched to the position
control mode and the system stops
immediately when the current feed
value falls outside the software stroke
limit range.