Fault codeA7479
EPOS: Software limit switch minus reached when the axis has reached the software limit switch minus position while an active traversing block was interrupted. The manual's first action is: “Correct the target position.”
- Model
- Siemens SINAMICS V90, SIMOTICS S-1FL6
- Display shows
- EPOS: Software limit switch minus reached (A7479)
- Type
- Fault code
- Source
- Manual p. 309
What A7479 means
EPOS: Software limit switch minus reached p. 309
Common causes
- The axis is at the position of the software limit switch minus. An active traversing block was interrupted. p. 309
What to do
Before you service the product, read the safety instructions in the manual p. 2.
If A7479 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 A7479; 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.