ABB DCS880 Drive
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Dec 25, 2021 9:00 am
How can resolve problem F524 Main contactor acknowledge Fault In ABB DCS880 ?
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Dec 25, 2021 9:00 am
Main contactor acknowledge at the DI is missing.
Check:
− The settings of 20.33 Main contactor control mode and 20.34 Main contactor acknowledge source.
− The switch on/off sequence.
− The auxiliary contactor/relay switching the main contactor after an On/Off command.
− The safety relays if existing.
− The used digital inputs and outputs (groups 10 and 11)
