Delta AL002 fault code meaning
Delta / AL002
Series: ASDA-A2-E, ASDA-A2, ASDA-A2R, ASDA-B2-F, ASDA-B2, ASDA-M
Overvoltage
servo drive
Meaning:
Possible causes
- Incorrect regenerative resistor selection or not
- Connect an external regenerative resistor
- If the alarm persists, send the drive
- Back to the manufacturer
- Main circuit input voltage is higher than
- Permissible voltage value
- Use a voltmeter to determine whether the main circuit input voltage
- is within the rated allowable voltage range (refer to
- Power supply input error (incorrect
- Power supply system)
- Use a voltmeter to check whether the power supply system complies with
Source: ASDA A2-E (EtherCAT) Application Technical Manual (DELTA_IA-ASD_ASDA-A2-E_UM_TC_20221229) P124; ASDA-A2 User Manual (DELTA_IA-ASD_ASDA-A2_UM_SC_20240510) P591; ASDA-A2R User Manual (DELTA_IA-ASD_ASDA-A2R_UM_SC_20200423) P542; ASDA-B2-F User Manual (DELTA_IA-ASDA-B2-F_UM_SC_20180601) P220; ASDA-B2 User Manual (DELTA_IA-ASD_ASDA-B2_UM_SC_20230421) P305; ASDA-M Application Technical Manual (DELTA_IA-ASD_ASDA-M_UM_SC_20180709) P525
Series: ASDA-A3, ASDA-B3, ASDA-E3, ASDA-E3C-E, ASDA-E3C-L, ASDA-H3
Overvoltage
servo drive
Meaning: The main circuit voltage is higher than the specified voltage.
Possible causes
- Condition: The main circuit voltage is higher than the specified voltage. Cause:
- The main circuit input voltage is higher than the rated allowable voltage.
- Power supply input error (incorrect power supply system).
- Drive hardware fault.
- Incorrect regenerative resistor selection or no external regenerative resistor connected.
Source: ASDA-A3 User Manual (DELTA_IA-ASD_ASDA-A3_UM_SC_20230515) P1143; ASDA-B3 User Manual (DELTA_IA-ASD_ASDA-B3_UM_SC_20250108) P882; ASDA-E3 (DELTA_IA-ASD_ASDA-E3_UM_SC_20260313) P607; ASDA-E3C-E Application Technical Manual (DELTA_IA-ASD_ASDA-E3C-E_UM_SC_20260612) P532; ASDA-E3C-L Application Technical Manual (DELTA_IA-ASD_ASDA-E3C-L_UM_SC_20260612) P404; ASDA-H3 User Manual (DELTA_IA-ASD_ASDA-H3_UM_SC_20260428) P767
Series: ASDA-W3
Drive module (DM) DC Bus overvoltage
servo drive
Meaning:
Possible causes
Source: ASDA-W3 Series Servo System Application Technical Manual (DELTA_IA-ASD_ASDA-W3_UM_SC_20251226) P711