A794

Brake Resistor Data

ABB · ACS580 General Purpose Drive

What does A794 mean?

One or more critical parameters related to the brake resistor's data (such as resistance value, thermal time constant, or maximum continuous power) are either incorrect or not properly configured. This prevents the drive from accurately managing and protecting the brake resistor, risking damage during braking operations.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Check and correct the Maximum continuous power in parameter 43.09 if the auxiliary code 0003 is present.

  2. 4

    Ensure all necessary brake resistor parameters in group 43 are entered accurately according to the resistor's specifications.

Source: ABB ACS580 General Purpose Drive
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