Lust CDA3000 - Terminal Assignment 1

Engineering Guide CDA3000
1-19
1 Analysis of task
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EN
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A
In summary: The positioning accuracy is dependent on the meas-
urement system and on the position control sampling.
It is also of course dependent on the sources of error
of the machine (temperature, rigidity, vibration, etc.).
1.3.4 Load torque
All machinery counteracts the drive with a specific torque. This torque is
composed of a static torque which is defined by the technological process
and the acceleration or deceleration torque determined by the change of
speed and the inert mass.
The static torque is generally termed "load torque", and in most cases
acts opposing the direction of motion. In exceptional cases, such as on
lifting gear during lowering, the load torque also acts in the direction of
motion.
Winders, coilers, lathes
M
L
~ 1/n
P = constant
Figure 1.17 Load characteristic: Winders, coilers, lathes
M
L
,
P
n
P
M