CHOKE OTEMP

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The temperature of the drive output filter (choke) in the ABB ACS800 (step-up drives) is excessive. This supervision indicates potential overheating of the filter components, which can lead to reduced lifespan, degraded performance, or failure of the output filter.

• High ambient temperature around the drive or within the drive enclosure.
• Restricted airflow to or from the output filter due to blockages or debris accumulation.
• Malfunction of the filter cooling fan (if present and monitored) preventing adequate heat dissipation.
• Excessive harmonic content in the output current causing increased losses and heat in the choke.

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Stop the ABB ACS800 drive and allow the output filter to cool down to ambient temperature.

2. 2

   Check the ambient temperature around the drive enclosure and ensure it is within the specified operating limits.

3. 3

   Verify that the filter fan (if present) rotates in the correct direction and that air flows freely through the filter assembly. Clean any dust or debris from heatsinks and vents.

4. 4

   Ensure that the drive's cooling system (fans, heatsinks, air ducts) for the output filter section is clean and unobstructed.

5. 5

   Evaluate the motor and cable for conditions that could lead to excessive current or harmonics, such as long unshielded motor cables or misaligned motor parameters.