Recurring problem with GIS Aperture Cover Interlock:
To protect M1, under one of several conditions, GIS sends a ‘Close AP Cover’ to ENC _LIC / EMCS PLC
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135 seconds after GIC commands Aperture Cover closed', if the Aperture Cover is not closed, a fault is issued. This requires GIS Fault Reset. By a quirk of the logic GIS reset must be issued two times.
TLDR
When GIC commands Aperture Cover to close, then at the end of the movement:
Click EMCS Reset (from HMI or pendant)
Click GIS reset from TIM HMI.
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Use only the the graphical GIS reset icon on the TIM HMI. Other reset buttons will not reset faults. |
Wait a few seconds.
Click GIS reset from TIM HMI again.
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The GIS must be reset twice to clear all faults. |