Delta AL0A4 fault code meaning
Delta / AL0A4
Series: ASDA-W3
Main circuit RST overvoltage
servo drive
Meaning: The main circuit RST voltage exceeds the allowable voltage.
Possible causes
- Condition: The main circuit RST voltage exceeds the allowable voltage. Cause: RST The voltage at initial power-on is too high.
Source: ASDA-W3 Series Servo System Application Technical Manual (DELTA_IA-ASD_ASDA-W3_UM_SC_20251226) P754