i750 OCT variant and V/f operation without encoder: Warning 0x7303 occurs and remains permanently present by mistake (fixed from V01.03.00)

Removed from:
Servo inverter i750:  from V01.03.00 

Behavior of the new version:
i750 device variant OCT:
The warning 0x7303 that occurs when the encoder is not connected can now always be reset, regardless of the encoder selection under parameter 0x2DE1:1.



Description of behavior:

After switching on, the warning message 0x7303 appears.
This can no longer be easily reset if parameter 0x2DE1:1 no longer set to factory setting (0x2DE1:1 =[10] HIPERFACE-DSL) is set, which will be the case for applications for V/f characteristic curve operation without encoder. 

background:
The occurrence of the warning message 0x7303 is due to the fact that the i750 initially boots up in Lenze settings and by default Parameter 0x2DE1:1 =[10] HIPERFACE-DSL is set.
The parameterization required for V/f characteristic curve operation without encoder must first be transferred from the controller to the i750 and written to the individual parameters before the actually required parameterization is effective.
 

Conditions under which the behavior occurs:

  • i750 device variant OCT and 
  • Switching on without connected OCT encoder (HIPERFACE-DSL Encoder) and
  • the parameter set from the controller is configured for V/f characteristic curve operation without feedback 
Affected products:
Servo inverter i750

Short-term measures, Recommendations, Rating:
After switching on, reset the warning message that may have appeared.
In order for the reset to be possible, you must parameter 0x2DE1:1 =[10] HIPERFACE-DSL must be set.
[Automatic Translation]
URL for linking this AKB article: https://www.lenze.com/en-de/go/akb/202400103/1/
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