Mitsubishi Electric QD77MS User Manual page 906

Classification Error
Error name
of errors code
507 Software stroke limit+
Positioning
operation
errors
508 Software stroke limit–
Error
• 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.
• 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.
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Chapter 16 Troubleshooting
Operation status at error occurrence
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.
• During speed control (including
speed control in speed-position
switching control or position-speed
switching control), the system stops
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
manual control is outside the
software stroke limit range.
At speed control mode/torque control mode/
continuous operation to torque control mode:
The system switches to the position
control mode and stops immediately
when the current feed value is
outside the software stroke limit
range.