User guide

Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05 469
5 Function blocks
5.125 L_SdIntegrateLimit - integration of speed to position
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5.125.1 Basics
Many machine structures and processes produce measuring systems which display a periodic feed
motion (so-called modulo measuring systems). These measuring systems thus represent a position
range of 0 ... s
max
.
The following cases can be further distinguished:
• Case 1: Modulo measuring systems with a reference to the mechanical system
• The modulo cycle results solely from the machine structure.
[5-78] Example of a reference to the mechanical system
• Case 2: Modulo measuring systems with a process reference
• The modulo cycle is a process parameter (e.g. here product length = 1000 mm) and thus is va-
riable.
[5-79] Example of a process reference
Selection help
For both cases integrator function blocks are provided, calculating a modulo position from an input
speed:
•Case 1: L_LdIntegrateCyclic
, L_SdIntegrateAxis, L_EsStretchIntegrate
•Case 2: L_SdIntegrateLimit
t
j(t)
360°
t
s(t)
1000 mm