09.95
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9–64

SINUMERIK 840C (IA)
9.6 SERVO trace (SW 4)
Explanation To supplement the start-up functions “DAC output” and “Measurement function”
implemented in SW 3, SW 4 includes a trace function with the following function-
ality:
S4 trace buffers with 2048 values
SOutput of SERVO signals with symbolic signal selection
SGraphic representation of recorded signal waveforms
SVarious trigger conditions for starting recording
SPre-trigger and post-trigger settings possible
SFile functions for storing and loading trace settings and measurement curves
The SERVO trace function is integrated on the highest menu tree level of the
drive servo start-up application since the 4 trace buffers offer 4 global resources
which can be applied to any NC axis or spindle (comparable to the 4 DAC chan-
nels of the mixed I/O module).
Selection The SERVO trace display can be called by means of softkeys Diagnosis,
Start-up and Drive servo startup.
Fig. 9.35
Explanation The measurement parameters relevant to the trace function can be set in this
display.
The field marked “Signal” is a pure output field which indicates the measured sig-
nal selected under softkey Selection meas.signal. The text “No signal” is the
default setting.
9 Drive Servo Start-Up Application (as from SW 3)
9.6 SERVO trace (SW 4)