Lenze Engineer v2.21 - Manual (Page 198)

Defining the system functionality
Creating an interconnection via the electrical shaft
198
Lenze · Engineer · 2.13 EN - 10/2014
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Modulo traversing range
• The drive can rotate continuously in one direction.
• If the set cycle is exceeded, a defined overshoot takes place, i.e. the value range repeats itself
periodically (example: rotary table).
• In a rotating system, the cycle corresponds to a typical rotation (360°) or a distance between
tools.
• Depending on the branch of industry, the cycle is also called "register", "register length", "arc
length", "arc size", "format cut length", etc.
• Absolute targets can be approached by exceeding the measuring system limit, e. g. from 10° to
350°.
[8-21] Examples of a "modulo" traversing range
• Typical curves for a modulo traversing range
[8-22] Example 1: Feed profiles
 Drive can rotate continuously
 Cycle (fixedly defined division)
 M
M

Œ
Œ
360°
60°
Positive feed Negative feed
 Feed (lift) = cycle
Y = position of the axis
X = master value/master angle
0
50
100
-50
-100
Y [mm]
90º 180º 270º 360º 0º
j
Œ
0
50
100
-50
-100
Y [mm]
90º 180º 270º 360º 0º
j
Œ

Note!
In the modulo traversing range the feed (lift) defined by the motion profile has to
correspond to the cycle, i. e. the curve has to be completed with the cycle end!