64

Input Supply Status

Vacon · NX Liquid-Cooled Drive

What does 64 mean?

This fault indicates issues with the drive's main input supply. It can be triggered if the main input switch is open, or if the Main Circuit Breaker (MCB) feedback signal is missing after the settled time defined by parameter P2.4.6 (Breaker Ack Time) has elapsed.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Verify the signal wiring for the MCB feedback input, ensuring proper connection and signal integrity.

  2. 4

    Review parameter P2.4.6 (Breaker Ack Time) to ensure it is set appropriately for the MCB's feedback delay.

Source: Vacon NX Liquid-Cooled Drive
Open Manual (Page 157)