Undervoltage in mains

Was bedeutet E2814 ?

The incoming AC mains voltage is below the acceptable operating threshold for the drive's power section. This can lead to insufficient DC bus voltage and operational issues.

• Incoming AC supply voltage sag or brownout.
• Incorrect mains voltage setting in drive parameters for the actual supply.
• Loose or high-resistance connections in the mains power circuit.
• Overloaded mains supply causing voltage drop.

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Measure the incoming AC mains voltage at the drive's input terminals and verify it is within the drive's specified operating range.

2. 2

   Check all connections in the mains power circuit, including circuit breakers, contactors, and terminal blocks, for tightness and corrosion.

3. 3

   Verify the mains voltage parameter setting in the drive configuration matches the actual incoming supply voltage.

4. 4

   Monitor the mains voltage over time to detect transient sags or brownouts, especially during peak load conditions.