Siemens SINUMERIK 840C Installation Instructions Manual page 624

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The "Overstore" function is disabled while the measurement is in progress. The
axis or spindle interface is operated depending on which interface (spindle or (C)
axis) is active when test mode is selected.
Automatic quadrant The purpose of the quadrant error compensation function is to
error compensation minimize contour errors resulting from friction, backlash and
with integrated torsional strain during reversal.The following functions are provided with
circularity test SW 4 to allow the detection and compensation of quadrant errors:
(option – SW 4)
S
S
Trace function A storage oscilloscope function with 4 user-parameterizable
(user-parameterizable channels has been introduced as a supplement to the start-up functions
oscilloscope implemented in SW 3 to date. This oscilloscope function makes it possible
function – SW 4) to record important signals for optimization and diagnostic purposes during
start-up and in operation.
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SINUMERIK 840C (IA)
The following start conditions must be fulfilled when the
measuring functions are started.
S
NC operating mode "JOG" selected.
S
No traversing command for the axis/spindle (NCK or com-
mand channel).
Operating mode on
selection
C-axis mode
Spindle operating mode
Axis mode (feed axis)
The measurement function for the current control loop must
not be used for suspended axes without an external weight
balance. When a mechanical brake is fitted, it must be
ensured that it cannot be released by electrical means.
Automatic setting of quadrant error compensation to facilitate start-up.
Integrated circularity test to provide visual display of axis performance and for
diagnostic purposes.
9 Drive Servo Start-Up Application (as from SW 3)
Active interface
Axis interface
Spindle interface
Axis interface
DB number
DB 29/32
DB 31
DB 29/32
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