Circularity Test - Siemens SINUMERIK 840D Description Of Functions

3 Start-Up
3.11 Start-up functions
3.11.3

Circularity test

Tr. 1: X1 axis: Circularity test (electrical axis)
Tr. 2: Y1 axis: Circularity test (hydraulic axis)
Fig. 3-41 Example of circularity test on HRV size 06, 15 l/min, knee-point 60%; V=400 mm/min (traversing velocity)
3.11.4 Servo trace
3-90
SINUMERIK 840D/SIMODRIVE 611 digital Descr. of Functions HLA Module (FBHLA) – 04.00 Edition
The circularity test is used among other things as a way of checking the result-
ing contour precision. The actual positions of a circular movement are mea-
sured and the deviations from the programmed radius (especially at quadrant
transition points) displayed graphically. For detailed information, see:
References: /FB/ Part 2, K3, Sect. 2.7 "Circularity test"
Example: The following example refers to a drive with an HRV.
X1 axis: Horizontal movement by electrical drive
Y1 axis: Vertical movement by hydraulic drive
Scl/Div = 1.000e–03
The servo trace function is used for graphic representation of signals and oper-
ating conditions.
A hydraulic-specific signal list (servo and drive signals) is available as a support
function for axes with HLA module.
The following hydraulic-specific drive signals are supported by the servo trace:
S
Active power (with pressure sensing)
S
Actual force (with pressure sensing)
S
Actual velocity value
S
Valve stroke setpoint
S
Actual valve stroke
S
Actual pressure cylinder A end
S
Actual pressure cylinder B end
Radius = 19.999
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04.00
02.99