ABB DCS880 Drive
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Dec 25, 2021 7:11 am
How can resolve problem A781 Motor fan acknowledge warning In ABB DCS880 ?
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Dec 25, 2021 7:15 am
Programmable, see 20.39 Motor fan acknowledge source
Motor/External cooling fan feedback at the DI is missing. See also
71B1.
Check:
− The setting of 20.39 Motor fan acknowledge source.
− The fan operation and connection. Replace the motor/external
fan if faulty.
− The fan contactor.
− The fan supply voltage.
