Siemens SINAMICS V90, SIMOTICS S-1FL6 Error F7481: EPOS: Axis position < software limit switch minus

Industrial motor drive · taken from the manufacturer’s manual, pages cited

Fault codeF7481

The axis position is below the software limit switch minus setting. The manual's first action is: “• Correct the target position. • Change software limit switch minus (Cl: p2580).”

Model
Siemens SINAMICS V90, SIMOTICS S-1FL6
Display shows
EPOS: Axis position < software limit switch minus (F7481)
Type
Fault code
Source
Manual p. 295

What F7481 means

EPOS: Axis position < software limit switch minus p. 295

Common causes

  • The actual position of the axis is less than the position of the software limit switch minus. p. 295

Safety warnings — read before you start

  • DANGERGeneral Safety Instructions. 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. p. 2
  • WARNINGRisk of Electric Shock and Fire. Risk of electric shock and fire from supply networks with an excessively low impedance Excessively high short-circuit currents can lead to the protective devices not being able to interrupt these short-circuit currents and being destroyed, and thus causing electric shock or a fire. p. 12
  • WARNINGElectric Shock if No Ground Connection. Electric shock if there is no ground connection For missing or incorrectly implemented protective conductor connection for devices with protection class I, high voltages can be present at open, exposed parts, which when touched, can result in death or severe injury. p. 12
  • WARNINGElectric Shock Due to Unsuitable Power Supply. Electric shock due to connection to an unsuitable power supply When equipment is connected to an unsuitable power supply, exposed components may carry a hazardous voltage that might result in serious injury or death. p. 12

What to do

  1. • Correct the target position. • Change software limit switch minus (Cl: p2580). p. 295

If F7481 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 F7481; 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.