L-force Motion: MC_GearInPos: Uncontrolled movements in the case of significant changes in the master speed (no correction planned)

Corrected from:
Library: L-force-Motion   (no correction planned)
                (contained in the PLC Designer)

Response of the new version:

 


 
What happens?
Under certain conditions, the slave axis performs unexpected movements when clutching via the 'MC_GearInPos' FB.
The software limit positions may be overtravelled.
The slave axis clutches in with negative speed, i.e. it reverses.
 
When does this behaviour occur?
The incorrect behaviour only occurs if the master speed changes significantly during the clutch-in phase.
 
Which products are affected?
Library:  L-force Motion
                (contained in the PLC Designer)
Short-term measures:
Only start clutching in when the master speed is almost constant.
If necessary, change the project to FAST Motion.
 
Evaluation/recommendations:
The described problem only concerns the short period of the clutch-in process.
 

URL for linking this AKB article: https://www.lenze.com/en-de/go/akb/201400290/1/
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