Phase failure

What does E2818 mean?

The IndraDrive MPx02 has detected the loss of one or more phases of the incoming three-phase AC mains supply. This condition prevents proper operation, leading to unbalanced currents and insufficient power, and can damage the drive and motor if not addressed promptly.

• Blown fuse or tripped circuit breaker in one phase of the incoming supply line.
• Open circuit or loose connection in one of the mains power lines to the drive.
• Fault in the upstream power transformer or distribution equipment.
• Power utility issue leading to a single or multi-phase loss.
• Incorrect wiring of the mains power supply.

Click steps to track your progress.

1. 1

   Immediately power down the drive and visually inspect all fuses and circuit breakers in the incoming power supply circuit for the IndraDrive MPx02. Replace or reset as necessary.

2. 2

   Measure the voltage between all three phases (L1-L2, L2-L3, L3-L1) at the input terminals of the drive to confirm the presence of all phases and balanced voltages.

3. 3

   Check all power cable connections from the main supply to the drive, ensuring they are tight, correctly terminated, and free from corrosion.

4. 4

   Investigate the upstream power distribution system, including contactors and transformers, for any component failures.

5. 5

   If the problem persists and upstream power is confirmed healthy, the drive's input rectifier or phase sensing circuit may be faulty.