Delta EF2 fault code meaning

Delta / EF2

Series: AFE3000

External terminal error 2

active front end

Meaning: When the contact status of the MI function terminal assigned to the EF2 function is ON, output stops immediately and EF2 is displayed on the digital operator.

Possible causes

Source: AFE3000 Series User Manual (DELTA_IA-PQ_AFE3000_UM_TC_20260330) P134