Siemens SINAMICS V90, SIMOTICS S-1FL6 Error A7455: EPOS: Maximum velocity Limited

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

Alarm codeA7455

The maximum velocity parameter is too high, preventing correct modulo correction calculation for EPOS operation. The manual's first action is: “Reduce the maximum velocity (p2571).”

Model
Siemens SINAMICS V90, SIMOTICS S-1FL6
Display shows
EPOS: Maximum velocity Limited (A7455)
Type
Alarm code
Source
Manual p. 307

What A7455 means

EPOS: Maximum velocity Limited p. 307

Common causes

  • The maximum velocity (p2571) is too high to correctly calculate the modulo correction. p. 307

What to do

  1. Reduce the maximum velocity (p2571). p. 307

Before you service the product, read the safety instructions in the manual p. 2.

If A7455 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 A7455; 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.