If the self supervision of the IED detects a diagnostic error during the start-up
process, the green Ready LED flashes. Further information on the error may be
visible on the local HMI under Main menu/Diagnostics/IED status/General.
Note down the displayed information as reference when contacting ABB technical
support.
Section 7 1MRK 514 026-UEN B
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84 670 series 2.2 IEC
Installation manual
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