APC ALARM: NEED REF RETURN

Hva betyr DS0300 ?

This alarm indicates that the machine position and the position on the absolute position detector have become uncorresponding. This typically occurs when parameters related to rotary axis B type (e.g., parameter No. 1869) are set or when bit 4 (APZx) of parameter No. 1815 (indicating correspondence) is set to 0. The uncorrespondence is reflected in bit 0 of diagnosis data No. 310 and requires re-establishing the reference.

• The servo drive requires the home position to be re-established.
• Loss of reference point for axis positioning.
• Encoder index pulse not detected after power cycle.
• Manual intervention or homing routine failure.

Klikk på steg for å spore fremgangen.

1. 1

   Establish the reference position again for the affected axis.

2. 2

   Check bit 4 (APZx) of parameter No. 1815 for the affected axis; it should be 0, indicating the need for a reference return.

3. 3

   Review diagnosis data No. 310, bit 0, to confirm the cause of uncorrespondence after parameter changes.