Polarity Judge Timeout

What does dv7 mean?

The drive failed to detect motor polarity within the preset time, indicating an issue with the motor's electrical connection or winding integrity. This can prevent proper motor startup, accurate current control, and safe operation.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Verify and tighten all screws on the drive's output terminals (U, V, W) to the manufacturer's specified torque.

2. 4

   Check all motor cable connections at the motor side for tightness, corrosion, and integrity.