Delta AL003 fault code meaning
Delta / AL003
Series: ASDA-A3
Undervoltage
servo drive
Meaning: 1. The main circuit voltage is below the specified voltage. The default error type for this alarm is warning (Warning). To change it to alarm (Alarm), set P2.066 [Bit 9] to 1. 2. DC Bus voltage is less than P4.024 × √2.
Possible causes
- Conditions:
- The main circuit voltage is below the specified voltage. The default error type for this alarm is warning (Warning). To change it to alarm (Alarm), set P2.066 [Bit 9] to 1.
- DC Bus voltage is less than P4.024 × √2. Cause:
- The main circuit input voltage is below the rated permissible voltage.
- No input voltage in the main circuit.
- Power supply input error (incorrect power supply system).
Source: ASDA-A3 User Manual (DELTA_IA-ASD_ASDA-A3_UM_SC_20230515) P1144
Series: ASDA-B3
Undervoltage
servo drive
Meaning: 1. The main circuit voltage is below the specified voltage. The default response to this condition is a warning (Warning). To change it to a fault (Alarm), set P2.066 [Bit 9] to 1. 2.DC Bus voltage is less than P4.024 × √2.
Possible causes
- Conditions:
- The main circuit voltage is below the specified voltage. The default response to this condition is a warning (Warning). To change it to a fault (Alarm), set P2.066 [Bit 9] to 1.
- DC Bus voltage is less than P4.024 × √2. Cause:
- The main circuit input voltage is below the rated permissible voltage.
- No input voltage in the main circuit.
- Power supply input error (incorrect power supply system).
Source: ASDA-B3 User Manual (DELTA_IA-ASD_ASDA-B3_UM_SC_20250108) P883
Series: ASDA-E3
Undervoltage
servo drive
Meaning: 1. The main circuit voltage is below the specified voltage. This alarm defaults to the warning type (Warning). To change it to the alarm type (Alarm), set P2.066 [Bit 9] to 1. 2. DC Bus voltage is less than P4.024× √2.
Possible causes
- Conditions:
- The main circuit voltage is below the specified voltage. This alarm defaults to the warning type (Warning). To change it to the alarm type (Alarm), set P2.066 [Bit 9] to 1.
- DC Bus voltage is less than P4.024 × √2. Cause:
- The main circuit input voltage is below the rated permissible voltage.
- No input voltage in the main circuit.
- Power supply input error (incorrect power supply system).
Source: ASDA-E3 (DELTA_IA-ASD_ASDA-E3_UM_SC_20260313) P608
Series: ASDA-E3C-E
Undervoltage
servo drive
Meaning: 1. main circuit voltage is below the specified voltage. The default classification of this alarm is warning (WARN). To classify it as an alarm (ALM), set P2.066 [Bit 9] to 1. 2.DC Bus voltage is less than P4.024×√2.
Possible causes
- Conditions:
- The main circuit voltage is below the specified voltage. The default severity of this alarm is warning (WARN). To change it to alarm (ALM), set P2.066 [Bit 9] to 1.
- DC Bus voltage is less than P4.024×√2. Cause:
- The main circuit input voltage is below the rated permissible voltage.
- No input voltage in the main circuit.
- Power supply input error (incorrect power supply system).
Source: ASDA-E3C-E Application Technical Manual (DELTA_IA-ASD_ASDA-E3C-E_UM_SC_20260612) P533
Series: ASDA-E3C-L
Undervoltage
servo drive
Meaning: 1. The main circuit voltage is below the specified voltage. This alarm defaults to warning (WARN). To configure it as an alarm (ALM), set P2.066 [Bit 9] to 1. 2.DC Bus The voltage is less than P4.024 × √2.
Possible causes
- Conditions:
- The main circuit voltage is below the specified voltage. The default severity of this alarm is warning (WARN). To change it to alarm (ALM), set P2.066 [Bit 9] to 1.
- DC Bus voltage is less than P4.024 × √2. Cause:
- The main circuit input voltage is below the rated permissible voltage.
- No input voltage in the main circuit.
- Power supply input error (incorrect power supply system).
Source: ASDA-E3C-L Application Technical Manual (DELTA_IA-ASD_ASDA-E3C-L_UM_SC_20260612) P405
Series: ASDA-H3
Undervoltage
servo drive
Meaning: 1. The main circuit voltage is below the specified voltage. This alarm defaults to warning (WARN). To configure it as an alarm (ALM), set P2.066 [Bit 9] to 1. 2.DC Bus The voltage is less than P4.024 × √2.
Possible causes
- Conditions:
- The main circuit voltage is below the specified voltage. The default severity of this alarm is warning (WARN). To change it to alarm (ALM), set P2.066 [Bit 9] to 1.
- DC Bus voltage is less than P4.024 × √2. Cause:
- The main circuit input voltage is below the rated permissible voltage.
- No input voltage in the main circuit.
- Power supply input error (incorrect power supply system).
Source: ASDA-H3 User Manual (DELTA_IA-ASD_ASDA-H3_UM_SC_20260428) P768
Series: ASDA-W3
Drive module (DM) DC Bus undervoltage
servo drive
Meaning:
Possible causes
Source: ASDA-W3 Series Servo System Application Technical Manual (DELTA_IA-ASD_ASDA-W3_UM_SC_20251226) P711