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10.8 Trace function (SW 4.2 and higher)
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SINUMERIK 840D Installation and Start-Up Guide (IAD) – 04.00 Edition
The measuring time is written directly into the “Measuring duration” field.
Direct input of pretriggering and posttriggering.
With negative input values (sign minus –) recording starts in advance of the
triggering event by the time set.
With positive input values (without sign) recording starts
the time set after the triggering event.
Condition: Triggering time + measuring duration 0.
The type of triggering is selected from the “Trigger” dropdown list.
The trigger always refers to trace 1. Once the triggering conditions are fulfilled
traces 2 to 4 are started simultaneously.
Settable triggering conditions:
S No trigger, i.e. measurement starts when you operate the softkey Start (all
traces are started in synchronism).
S Positive edge
S Negative edge
Direct input of the triggering threshold.
The threshold is only active with the types of triggering “Positive edge” and
“Negative edge”.
The unit refers to the signal selected.
Selects the axis/spindle when the cursor is positioned on the corresponding
“axis/spindle name” list field.
You can also select the axis/spindle directly in the list box from the dropdown list
using the cursor.
With the Start softkey, trace function recording is started.
With the Stop or RESET softkey, you can cancel a running measurement.
Measurement
parameters
Measuring duration
field
Triggering time field
Trigger field
Threshold field
Softkeys
Axis +
Axis –
Softkeys
Start
Stop
10 Drive Optimization with Start-Up Tool
05.98
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