Siemens SINUMERIK FM-NC Installation And Startup Manual page 225

05.98
03.96
Measurement
parameters
Measuring duration
The measuring time is written directly into the "Measuring duration" field.
field
Triggering time 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 y 0.
Trigger field
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
S
S
Threshold field
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.
Softkeys Selects the axis/spindle when the cursor is positioned on the corresponding
Axis + "axis/spindle name" list field.
Axis –
You can also select the axis/spindle directly in the list box from the dropdown list
using the cursor.
Softkeys
With the Start softkey, trace function recording is started.
With the Stop or RESET softkey, you can cancel a running measurement.
Start
Stop
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SINUMERIK 840D Installation and Start-Up Guide (IAD) – 04.00 Edition
No trigger, i.e. measurement starts when you operate the softkey Start (all
traces are started in synchronism).
Positive edge
Negative edge
10 Drive Optimization with Start-Up Tool
10.8 Trace function (SW 4.2 and higher)
10
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