Lenze E94A - Manual (Page 426)

5 Function blocks
5.113 L_PosProfileTable - profile data record management (simple)
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Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05
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5.113.3 Positioning modes
Depending on the traversing range/application, you can select between different positioning mo-
des which are described in the below table.

Note!
For absolute positioning, the home position must be known!
• If an absolute positioning process (positioning modes 1 ... 2 and 11 ... 16) is started alt-
hough the home position is not known, an error message occurs.
• In this case a programming error has occurred and the program flow must be reset.
• If the error only occurs in a sequence profile, the last valid deceleration is used to
decelerate the drive to standstill.
The modulo positioning modes may involve reversing processes!
• If a modulo positioning process (positioning modes 11 ... 16) is started at an initial
speed other than zero, the target position may be overtravelled and a reversing pro-
cess may follow, depending on the selected deceleration / S-ramp time parameters.
This would also cause e.g. counter-clockwise rotation in the "Absolute CW (modulo)"
positioning mode.
Positioning mode Supported traversing range
Unlimited Limited Modulo
1 Absolute
The axis travels to an absolute position.
• Reference for the absolute position is zero position.
• The home position must be known.
• The traversing range is limited:
• to 214748.3647 [unit]
• by the internal display area (±2 31 increments)
 
2 Absolute TP
Like mode 1, but with profile change on touch probe detection.
 Touch probe positioning . ( 428)
 
5 Relative
The axis is traversed by a distance.
• Reference for the distance is the target position of the profile execut-
ed before.
• The feed per positioning is limited:
• to 214748.3647 [unit]
• by the internal display area (±2 31 increments)
  
6 Relative TP
Like mode 5, but with profile change on touch probe detection.
 Touch probe positioning . ( 428)
  
7 Speed
Continuous constant travel.
• This mode does not approach a defined position, but follows the pro-
file.
• Acceleration and deceleration are based on profile values.
• The traversing direction is defined by the sign of the traversing speed.
• Stopped through break signal.
 
8 Speed TP
Like mode 7, but with profile change on touch probe detection.
 Touch probe positioning . ( 428)
 