Motor Phase Error

What does LP1 mean?

One or more motor phases have failed, the motor current is unusually low, the motor is too small for the drive's rated power, or the DC injection brake is active during identification. This indicates a potential issue with the motor connection, motor sizing, or incorrect operating conditions. Operating with missing or low phases can cause motor overheating, damage to windings, and erratic operation.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Ensure the connected motor's power rating matches the drive or adapt motor parameters using C0599.

2. 4

   If occurring during parameter identification, ensure the DC injection brake (DCB) is deactivated and the motor is appropriately sized for the drive.