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Chapter 16 Troubleshooting
Classification
of warnings
Warning
code
Warning name Warning Operation status at warning occurrence
Positioning
operation
warnings
500
Deceleration/stop
speed change
The speed change request is issued
during deceleration stop.
The speed change is not carried out.
501 Speed limit value over
• Setting speeds
(Note-2)
exceed the speed
limit value when starting/restarting the
positioning or when changing the speed
at the positioning
(Note-1)
. (At the
interpolation control, either of reference
axes or interpolation axes exceeds the
speed limit value.)
• "[Cd.140] Command speed at speed
control mode" exceeds "[Pr.8] Speed
limit value" during the speed control
mode.
• "[Cd.146] Speed limit value at torque
control mode" exceeds "[Pr.8] Speed
limit value" during the torque control
mode.
• "[Cd.147] Speed limit value at continuous
operation to torque control mode"
exceeds "[Pr.8] Speed limit value" during
the continuous operation to torque
control mode.
(Note-1): The speed change by position-
speed switching control, target
position change function, or
override function is contained.
(Note-2): This speed is a value in which
override value is considered
when override function is used.
("[Cd.13] Positioning operation
speed override" is set other than
100[%].)
[Position control mode]
• The speed is controlled with the speed
limit value.
• The "[Md.39] In speed limit flag" is turned
ON.
[Speed control mode/Torque control
mode/Continuous operation to torque
control]
• The speed is controlled with the speed
limit value. (The "[Md.39] In speed limit
flag" is not turned ON.)
503 M code ON signal ON
The M code ON signal is turned ON when
the positioning data is executed.
Continue executing the positioning data.
505
No operation
termination setting
In the positioning by block starting, the
50th point of the positioning start data is
set to CONTINUE.
The operation is terminated.
506
FOR to NEXT nest
construction
FOR to NEXT is nested.
The operation is continued.
508
Speed-position
switching (during
acceleration) signal ON
The switching signal for speed-position
switching control (INC mode) is turned ON
during acceleration.