Cause : Line contactor feedback signal missing comes when the line contactor was not able to be closed within the time in p0861 or the line contactor was not able to be opened within the time in p0861.

- the line contactor dropped out during operation

- the line contactor has closed although the drive converter is powered down.

- check the setting of p0860.

- check the feedback circuit from the line contactor.

- increase the monitoring time in p0861.
See also: p0860 (Line contactor feedback signal), p0861 (Line contactor monitoring time)