Description
In control cabinet arg, drive unit at unit position arg is chain-connected to SMB, and the connection sequence on the drive link is incorrect. For SMB links, the chain connection between drive units should be sequential and cannot be interrupted by other drive units driving the link.
Consequences
The system enters a system fault state.
Possible causes
Chained SMB link sequence down on drive link.
Recommended actions
- Modify the sequence of chained connections SMB drive unit so that all SMB links are connected first to direct SMB drive unit and then to chained connections SMB drive unit in the same order as on the drive link.