Drive Diagnostics - Siemens SINAMICS S120 Operating Instructions Manual

Control via the operator panel
4.6 Menu commissioning / service
4.6.3

Drive diagnostics

Curve recorder
The curve recorder provides a slow trace function, which monitors a signal trend.
A signal selected via a parameter is shown in the form of a curve.
Figure 4-6
The relevant settings of the curve recorder are changed via the F5 key or via the menu
"Commissioning/service – AOP settings - Curve recorder settings".
In addition to the curve, the value of the parameter selected in the curve recorder settings is
output on the display and updated every 0.5 ... 24.5 s (adjustable). With a slowly running
time basis (as of 20 minutes/figure), the time basis value flashes in the header in the 1 s-
cycle alternately with the text "slow X".
Assignment of the function keys F1 to F5 is not normally displayed visibly so that the space
can be fully utilized to display the curve. Pressing a function key shows the key assignments.
If no additional key is pressed within 5 seconds, the labeling disappears again.
The curve can be scaled automatically or manually. This is selected with key F3 "scale+" - F4
"Auto/Manual" followed by confirmation with F5 "OK."
● Auto
The scaling of the characteristic curve changes dynamically; it is oriented to the maximum
value (for example, 12.49) and minimum value (for example, 0.00) visible in the display
up to the actual instant in time. Scaling can be changed step-by-step by pressing buttons
F2 and F3.
If measured value noise is shown with an excessively high resolution as a result of the
automatic scaling, then the resolution can be reduced in four steps by pressing button F2.
As a result, the automatic scaling is deactivated. However, if the measured value leaves
the display range, then this will be extended. The automatic scaling can be reactivated by
pressing button F3.
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Curve recorder
Cabinet Modules Operator Panel AOP30
Operating Instructions, 04/2014, A5E03263551A