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ABB DCS880 Drive
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Dec 25, 2021 8:46 am
How can resolve problem 71B1 Motor fan acknowledge Fault In ABB DCS880 ?
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Dec 25, 2021 8:47 am
Programmable, see 20.39 Motor fan acknowledge source.
Motor/External cooling fan feedback at the DI is missing. See also A781.
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.