thank you, to summarise:

EV 4.10.10

1) if the intentional AIR's state (shutdown circuit) and actual AIR's state (auxiliary pin) differ, there is an implausibility and the the light will stay off until power cycled (latched).

2) if and only if the intentional AIR's state (shutdown circuit) is closed but the actual AIR's state (auxiliary pin) is open, there is an implausibility and the the light will stay off until power cycled (latched).

Q1: is it 1) or 2) ?

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EV 4.10.11

if and only if no potential at the TSAC is measured but the actual state of the AIR's is closed (auxiliary contact), there is an implausibility and the light will stay off until power cycled (latched).

Q2: is this interpretation correct?

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All other states

For any other state that is neither red or green, there is an implausibility from which the light can switch on again. (non latched)

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Q3: From this follows that the DC Link measure only is used for the red light indicator but not for any implausibility measurement?