Siemens alarm 2030*: Spindle speed too high
SINUMERIK 840C legacy alarm · Siemens 840C
What it means
The commanded spindle speed exceeded the permissible maximum stored in spindle machine data (gear-range dependent). The drive cannot safely follow the demand, so speed is limited and the alarm raised; check gear-range selection and programmed S values against limit MDs.
Likely causes
- Programmed S value above gear-range maximum
- Gear stage not changed although speed requires it
- Speed-limit machine data wrong after gearbox/drive service
Triage note: * suffix = spindle index
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