Delta AL02C fault code meaning
Delta / AL02C
Series: ASDA-A3, ASDA-B3, ASDA-E3C-E, ASDA-E3C-L, ASDA-H3
Drive overload
servo drive
Meaning: Drive overload.
Possible causes
- Condition: Drive overload. Cause:
- Continuous operation above the drive's rated load.
- Improper control system gain parameter or motion profile settings.
- Incorrect motor wiring.
- The motor encoder is damaged or faulty.
Source: ASDA-A3 User Manual (DELTA_IA-ASD_ASDA-A3_UM_SC_20230515) P1155; ASDA-B3 User Manual (DELTA_IA-ASD_ASDA-B3_UM_SC_20250108) P892; ASDA-E3C-E Application Technical Manual (DELTA_IA-ASD_ASDA-E3C-E_UM_SC_20260612) P541; ASDA-E3C-L Application Technical Manual (DELTA_IA-ASD_ASDA-E3C-L_UM_SC_20260612) P413; ASDA-H3 User Manual (DELTA_IA-ASD_ASDA-H3_UM_SC_20260428) P775
Series: ASDA-W3
Drive module (DM) overload
servo drive
Meaning: When monitored variable -247 [Drive module (DM) overload (AL02C) current (0.1%)] > 100%, the drive module output exceeds the rated load continuously. Monitored variable -223 [Drive module (DM) overload (AL02C) protection counter (%)] then starts counting. When the value > 100%, alarm AL02C is generated.
Possible causes
- Condition: When monitored variable -247 [Drive module (DM) overload (AL02C) current (0.1%)] > 100%, the drive module output exceeds the rated load continuously. Monitored variable -223 [Drive module (DM) overload (AL02C) protection counter (%)] then starts counting. When the value > 100%, alarm AL02C is generated. Cause:
- The motor output torque cannot meet the mechanism's requirements.
- A mechanism error prevents the motor from running.
- Incorrect control gain parameter settings.
- Field establishment error.
- The pulse encoder is affected by interference.
- Motor and encoder wiring error.
- Maximum drive module current < maximum motor current.
Source: ASDA-W3 Series Servo System Application Technical Manual (DELTA_IA-ASD_ASDA-W3_UM_SC_20251226) P728