Override 'POS-A-OVERRID' and 'POS-V-OVERRID'

Which products are affected?

9300EP servo positioning controller version V2.1

When does the problem occur?

The override function did not operate satisfactorily for operational adaptation of accelerations and decelerations.

When does the problem occur?

With override values less than 100% the override function did not operate satisfactorily for operational adaptation of accelerations and decelerations if internally the values for acceleration or velocity were too low (a, v < 65536 inc). The levels of the values depend on the machine parameters and can be read out under the following codes:
  • C1221/12: Indication 'Current value C1240' for Vmax in internal display (GDC: under menu 'Positioning functions / POS: Display')
  • C1221/13: Indication 'Current value C1250' for Amax in internal display (GDC: under menu 'Positioning functions / POS: Display')

The effects were generally more serious in acceleration override than in V-override, on account of the values which were usually lower.

Possible diagnostics?

Drive does not respond according to the changing override values.

Short-term measures/recommendations?

None. Possibly use FEVAN to adapt v and a.

Evaluation:

Response is not sporadic but even occurs during commissioning.

URL for linking this AKB article: https://www.lenze.com/en-de/go/akb/20035121/1/
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