Siemens A8526 fault code meaning
Siemens / A8526
Series: V90
PROFIdrive: No cyclic connection
servo drive
Meaning: Message class: Communication fault between the drive and the host controller (9). No cyclic connection to the control system exists. Establish a cyclic connection and activate a control system capable of cyclic operation.
Possible causes
Source: SINAMICS V90 PROFINET, SIMOTICS S-1FL6 Operating Instructions P396