Fault codeF30003
The DC link voltage is too low, indicating undervoltage in the power unit's circuit. The manual's first action is: “Check the line supply voltage”
- Model
- Siemens SINAMICS V90, SIMOTICS S-1FL6
- Display shows
- DC link voltage, undervoltage (F30003)
- Type
- Fault code
- Source
- Manual p. 299
What F30003 means
DC link voltage, undervoltage p. 299
Common causes
- The power unit has detected an undervoltage condition in the DC link. p. 299
What to do
- Check the line supply voltage p. 299
Before you service the product, read the safety instructions in the manual p. 2.
If F30003 is still not resolved
- Contact service / dealer for assistance p. 2 “Qualified Personnel The product/system described in this documentation may be operated only by personnel qualified for the specific task in accordance with the relevant documentation, in particular its warning notices and safety instructions.”
- Contact service / dealer for assistance p. 13 “NOTICE Property damage due to loose power connections Insufficient tightening torques or vibration can result in loose power connections. This can result in damage due to fire, device defects or malfunctions.”
This page summarises what the manufacturer’s manual says about F30003; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Siemens. Found a mistake? Report an error.