Delta ALB86 fault code meaning

Series: ASDA-H3

Second power supply module - External regenerative resistor overload

servo drive

Meaning: The drive module capacitor discharges to 45 kW or below. Excessive energy in the regenerative resistor connected to the power supply module causes resistor overload.

Possible causes

• Condition: The drive module capacitor discharges to 45 kW or below. Excessive energy in the regenerative resistor connected to the power supply module causes resistor overload. Cause:
• Incorrect regenerative resistor selection or no external regenerative resistor connected.
• Parameter setting error (P8.087, P8.088).
• Other energy (such as interference) is fed back into the power supply module, or the power supply input voltage exceeds the rated allowable voltage.
• Power supply module hardware fault.

Source: ASDA-H3 User Manual (DELTA_IA-ASD_ASDA-H3_UM_SC_20260428) P812