ABB ACS880 Drive
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Jun 15, 2024 5:11 am
Cause : Ext earth leakage comes when external earth fault trigged by input selected with parameter 131.28 Ext earth leakage signal source.
- Check external earth fault source.
- Usually only one device is allowed in the same network.
- Check AC fuses. Check for earth leakages.
- Check supply cabling.
- Check power modules.
- Check there are no power factor correction capacitors or surge absorbers in supply cable.