Siemens F7449 fault code meaning

Series: V90

Load gearbox: Actual position tracking value exceeded the monitoring window

servo drive

Meaning: While switched off, the currently active motor encoder moved beyond the set monitoring window. The reference between the mechanical system and the encoder no longer exists. Fault value (r0949, decimal): Possibly the deviation between the position after the measuring gearbox and the previous encoder position (absolute value in increments). The sign indicates the direction of movement. Note: The preset monitoring window is one quarter of the encoder resolution. Then acknowledge the fault and adjust the absolute encoder (ABS).

Possible causes

Source: SINAMICS V90 PROFINET, SIMOTICS S-1FL6 Operating Instructions P373