Siemens SINAMICS S120/S150 Drive
1
Posts
1
Users
0
Reactions
196
Views
Feb 21, 2024 9:06 am
Cause : Inadmissible DC link voltage dissymmetry comes when the deviation of the DC link voltage measured values exceeds the alarm threshold specified in p7011.
- inhibit the pulses of the faulted power unit (p7001).
- check the DC link connecting cables.
- the DC link voltage measurement is incorrect and must be calibrated or renewed.
