F873, Feedback "AX572x": Position is invalid

The position calculation was not finished in time.

Diagnostic Code (Hex.)

Diagnostic Code (Dez.)

F873

63603

Class

Type

Error

Runtime error

Standard Reaction

Reset

Open loop ramp

Execute Reset-Command (S-0-0099). If the drive is still in OP it will switch to SafeOp while executing the reset.

Possible Causes

Solutions

The feedback system requires too much time for the position calculation.

Check or exchange the feedback system.

An unknown hard- or software error has occurred.

Disconnect the servo drive from the mains (including the 24 V power supply) and start a new attempt. If this error occurs repeatedly, please call the Beckhoff branch office that is responsible for you.