ABB eVM1 Installation And Service Instructions Manual page 92

14.8.2 Digital Output Mapping
The configuration matrix provides the 16 available DOs in the columns and a choice of possible
meanings in the rows.
When a box identifying a column and a meaning is ticked, the DO processing is enabled. When
the assigned meaning becomes true, the free potential output contact, normally open, will be
closed and keep the state as long as the condition assigned is valid.
All DOs are free potentially normally open (NO), apart from DO 16 that provides the WatchDog
not Ready function and is normally closed.
In the example below, when the CB is closed and its status becomes Closed, DO1 will close its
output contact. As the CB status is mapped on two outputs - DO1 and DO2 - at the same time
DO2, which was previously closed, will open the output contact.
Fig. 78
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