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10.2 Measuring functions
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 Siemens AG 2000 All Rights Reserved
SINUMERIK 840D Installation and Start-Up Guide (IAD) – 04.00 Edition
10.2 Measuring functions
A range of measuring functions allow the time and/or frequency response of
drives and closed-loop controls to be displayed in graphic form on the screen.
For this purpose, test signals with an adjustable interval are connected to the
drives.
The test setpoints are adapted to the application in question by means of mea-
surement or signal parameters, the units of which are determined by the rele-
vant measuring function or operating mode. The measurement or signal param-
eter units are subject to the following conditions:
Table 10-1 Quantity and units for measurement or signal parameters
Quantity Unit
Torque Specified in percent referred to the peak torque of the power section
used. The torque calculation for the power section is based on: MD
1108 x MD 1113
Velocity Metric system:
Specified in mm/min or rev/min for linear or rotary motions
Inch system:
Specified in inch/min or rev/min for linear or rotary motions
Distance Metric system:
Specified in mm or degrees for linear or rotary motions
Inch system:
Specified in inches or degrees for linear or rotary motions
Time Specified in ms
Frequency Specified in Hz
The default setting for all parameters is 0.
Functions which initiate a traversing motion are selected via the softkey menu;
they are all actually started by means of the NC START key on the machine
control panel. If the basic display for the function is deselected without the tra-
versing motion being initiated, then the function selection is reset.
Once the traversing function has been started, the basic display can be dese-
lected without any affect on the traversing motion.
Explanation
Measurement/
signal parameters
Additional
information
10 Drive Optimization with Start-Up Tool
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