Power Module Error

What does 08390000 hex mean?

An error was detected in the power module. This indicates a fundamental issue within the Servo Drive's power module, which could be due to external wiring problems or internal hardware failure.

• There is a short-circuit, ground fault, or contact failure on the U, V, or W motor cable
• There is a short-circuit on the wiring of External Regeneration Resistor or the resistance value is small
• The insulation resistance failed between the U, V, or W motor cable and the motor ground wire
• Servo Drive failure

Click steps to track your progress.

1. 1

   Measure the AC input voltage at the servo drive's main power terminals (L1, L2, L3 or L, N) to confirm it is within the manufacturer's specified nominal range.

2. 2

   Inspect all main power input wiring, including protective earth (PE) connections, at the servo drive for tightness, correct termination, and absence of physical damage or signs of overheating.

3. 3

   Inspect the motor power cable and its connections to both the servo drive and the motor for any insulation damage, loose terminals, or evidence of short circuits or ground faults.

4. 4

   Verify critical servo drive parameters, such as input voltage settings, motor nominal current, and overload protection thresholds, against the machine's configuration specifications.