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15.4 Maintenance and Troubleshooting
15.4.1 Operation History
M720VW
M system
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L system
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This is a maintenance function which is useful for tracing down the history and NC operation information and
analyzing trouble, etc. This information is saved in the history data file, and can be displayed on the screen
and output to a file.
The machine tool builder password is required to use his function.
The following two types of history data files are used.
- All history: The key history, alarm/warning history, PLC signal history, and AC input power error history is
recorded in date/time order.
- Key history: Only the key history is recorded in date/time order.
(Note)If the date and time are the same, the history will be displayed in the following order for each
part system.
(1) Alarm/warning history
(2) PLC input/output signal history
(3) Key history
(4) AC input power error history
15.4.2 Data Sampling
M720VW
M system
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L system
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The NC data sampling function samples the NC internal data (speed output from NC to drive unit, and
feedback data from the drive unit, etc.). This data can be output as text data.
Item
Sampling cycle
Number of sampled axes
Number of sampled channels
Sampling data size
- The data set with this function is not output to the parameters.
- The state returns to "Sampling stop" when the power is turned ON.
M730VW
M750VW
M720VS
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M730VW
M750VW
M720VS
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1.7ms × setting value
NC axis : 1 to 16axes
Spindle : 1 to 4 axes
1 to 8 points
Maximum 1,310,720 points
(Note 1) This is the entire data size. The data size per channel will decrease when the
number of sampled channels increases.
(Note 2) If the open DRAM memory is insufficient, the maximum data size will decrease.
M700V Series Specifications Manual
M730VS
M750VS
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M730VS
M750VS
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Specifications
15 Safety and Maintenance
III - 349
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