Delta AL08C fault code meaning

Delta / AL08C

Series: ASDA-A3, ASDA-B3, ASDA-E3, ASDA-E3C-E, ASDA-H3, ASDA-W3

Inertia estimation error during auto gain adjustment

servo drive

Meaning: An error occurs in the servo drive's inertia estimation when entering the auto tuning procedure.

Possible causes

Condition: An error occurs in the servo drive's inertia estimation when entering the auto tuning procedure. Cause:
Speed too low.
Acceleration/deceleration time too long.
Mechanical load inertia too large.
Mechanical inertia changes too abruptly.

Source: ASDA-A3 User Manual (DELTA_IA-ASD_ASDA-A3_UM_SC_20230515) P1178; ASDA-B3 User Manual (DELTA_IA-ASD_ASDA-B3_UM_SC_20250108) P906; ASDA-E3 (DELTA_IA-ASD_ASDA-E3_UM_SC_20260313) P631; ASDA-E3C-E Application Technical Manual (DELTA_IA-ASD_ASDA-E3C-E_UM_SC_20260612) P555; ASDA-H3 User Manual (DELTA_IA-ASD_ASDA-H3_UM_SC_20260428) P794; ASDA-W3 Series Servo System Application Technical Manual (DELTA_IA-ASD_ASDA-W3_UM_SC_20251226) P751