ABB ACS560 Drive
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Jul 13, 2021 12:05 pm
How can resolve problem A79C BC IGBT excess temperature alarm/warning in ABB ACS560 Drive ?
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Jul 13, 2021 12:05 pm
Cause : Brake chopper IGBT temperature has exceeded internal warning limit.
1. Let chopper cool down.
2. Check for excessive ambient temperature.
3. Check for cooling fan failure.Check for obstructions in the air flow.
4. Check the dimensioning and cooling of the cabinet.
5. Check resistor overload protection function settings (parameters 43.06...43.10).
6. Check that braking cycle meets allowed limits.
7. Check that drive supply AC voltage is not excessive.
