i950 TA Cia Advanced: Governor lock is not executed correctly and drive continues to rotate (corrected from V01.06.04)

Corrected from:
TA i900: as of V01.06.04.2154

Response of the new version:
i950 TA Cia Advanced: 
The inverter now responds as expected to the controller inhibit request. The inverter is blocked and the motor no longer rotates.
The cause was the speed threshold set too low for standstill detection within the brake logic. This speed threshold has now been set to 5 rpm. If the speed falls below this value, the brake logic detects that standstill has been reached, so that the holding brake is activated and the inverter is then blocked.

_____________________________________________________________________________________________________________________________________________________________________
What happens?
i950 TA Cia Advanced: 
If the parameterisation of the SSI absolute encoder is incorrect, the requested locking of the inverter may not be carried out and the axis may continue to rotate.
 
When does the behaviour occur?
i950 TA Cia Advanced: 
  • SSI absolute encoder used as position encoder and incorrect parameterisation of the SSI absolute encoder,
  • brake logic used in the controller,
  • the tracking error monitoring has been deactivated.
  • The drive is enabled by the control and disabled again after the malfunction has been detected.
Which products are affected?
TA i900

Short-term measures / evaluation / recommendations:
Before using the SSI absolute encoder as a position encoder, the correct function/parameterisation should be checked. 
In particular, the tracking error monitoring should not be deactivated. 
 
Automatic Translation

URL for linking this AKB article: https://www.lenze.com/en-de/go/akb/202000337/1/
Contact form