Code A01692: Speed for SLS exceeded
Issue Description & Safety Warning
The Siemens SINAMICS G120 CU240S Drive has triggered a critical Speed for SLS exceeded alarm. Immediate attention from a qualified operator or maintenance technician is required to prevent secondary damage to the equipment or spoiled parts during the manufacturing cycle. Always ensure standard safety and LOTO procedures are followed before accessing electrical cabinets.
Official Troubleshooting Steps
Reaction: NONE Acknowledge: NONE Cause: a) Output frequency when entering the SLS is higher than p9690 and p9692 is configured to trigger a passivated STO with a drive fault. b) Output frequency exceeds the SLS tolerance p9691. In both cases, the frequency is reduced according to the settings for the SS1, then the passivated STO state is entered and a fault is generated. Remedy: ad a) Reduce speed before entering the SLS or change the setting in p9692. ad b) increase the tolerance in p9691/p9891 compared to p9690/p9890. In both cases the passivated STO will be entered once zero frequency is reached. Acknowledge the passivated STO and the drive fault.
Source: SINAMICS G120 Control Units CU240S Faults and Alarms (Edition 05/2007)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Siemens SINAMICS G120 CU240S Drive Alarms
Siemens controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code A01692 on the SINAMICS G120 CU240S Drive identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Siemens's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 108 Siemens SINAMICS G120 CU240S Drive codes.
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