ABB REF 542plus, Operator'S Manual, Page: 27 / 134

27
7. Operating the primary objects
The primary objects can be operated from the HMI when the selected control mode
is local or local and remote. The Object control push buttons allow operating the
primary objects.
Press to step through the available objects until the desired object is selected (it
will appear highlighted in the SLD). The object remains highlighted until the open
or close push button is pressed or the time-out has elapsed.
Press to open the selected object.
Press to close the selected object.
Only primary objects controlled directly by REF 542plus can be
selected. For example, REF 542plus will show the correct position of a
manual disconnect switch after an operation, but it will not be possible
to select it.
Multifunction Protection and Switchgear Control Unit
Operator's manual
REF 542plus REF 542plus
1MRS755869