Delta AL426 fault code meaning
Delta / AL426
Series: ASDA-W3
Auxiliary encoder internal data reliability error
servo drive
Meaning: Internal data errors occurred three consecutive times.
Possible causes
- Condition: Internal data errors occurred three consecutive times. Cause:
- Caused by external interference.
- Encoder hardware fault.
Source: ASDA-W3 Series Servo System Application Technical Manual (DELTA_IA-ASD_ASDA-W3_UM_SC_20251226) P766