Main Power Supply Undervoltage (insufficient voltage between P and N)

What does 08480000 hex mean?

The main circuit power supply voltage fell below the operation guarantee range during Servo ON. This signifies that the Servo Drive did not receive adequate power, which can lead to unpredictable operation or shutdowns.

• Incorrect wiring of the main circuit power supply
• The low power supply voltage is applied to the Servo Drive
• The long time was set in Momentary Hold Time and the voltage was decreased momentarily
• Servo Drive failure

Click steps to track your progress.

1. 1

   Measure the main circuit input voltage (P and N terminals) directly at the Servo Drive and compare against the specified nominal voltage.

2. 2

   Inspect all main circuit power supply cables, connections, and terminals for looseness, damage, or proper sizing from the distribution panel to the Servo Drive.

3. 3

   Verify the capacity and stability of the upstream power source, including circuit breakers and transformers, to ensure sufficient power delivery under load conditions.

4. 4

   Monitor the main circuit voltage using a power quality analyzer or oscilloscope to detect transient voltage sags or drops that occur specifically during Servo ON or motor operation.