28

Drive Timed Overload (Adv. Code 0)

Vacon · X4 AC Drive

What does 28 mean?

This fault occurs when the drive detects an overload condition that surpasses its specified rating for a sustained period. For normal duty, the drive is rated for 120% of nameplate current for 60 seconds, and for heavy duty, 150% for 60 seconds. Sustained overload can damage the drive's internal power components.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Check for any mechanical binding, obstructions, or excessive friction in the driven machinery that could cause elevated load.

  2. 4

    Increase acceleration and deceleration ramp times to reduce peak torque and current demands during transitions.

Source: Vacon X4 AC Drive
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