ABB REX 521 Operator's Manual page 20

Protection relay
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REX 521
20
Protection Relay
Operator's Manual
The current state of the interlocking of the object can prevent the select or execute
requests. In that case the text =Interlocked is displayed for three seconds. The
attempted operation is cancelled and after the three seconds the current state of the
object is displayed.
C o n t r o l C B
=I n t e r l o c k e d
C o n t r o l C B
=A b o r t e d
C o n t r o l C B
=I n t e r l o c k e d
Fig. 3.2.3.-1
Manual control
Table 3.2.3-1
Manual control messages
Message
Meaning
Aborted
The current operation was aborted either by user or state change in object status
or timeout.
Are you sure?
Waiting for confirmation for the selected operation. [E] accepts it and [C] cancels it.
Closed
Object state is closed. Control is not possible due to remote or control off state.
Closed. E=Close
Object state is closed. [E] will close it.
Closed. E=Open
Object state is closed. [E] will open it.
Closing...
Object is being closed.
External change
Local/remote state controlled by digital inputs has changed. Only in external input
mode. Cancels current operation if any.
Failed
Executing the control request failed. The reason was not interlocking.
Interlocked
Selecting the object or executing the control request failed due to interlocking.
Not allowed
Selecting the object failed. The reason was not interlocking.
Not local
Attempted to control the object in remote or control off state.
Open
Object state is open. Control is not possible due to remote or control off state.
Open. E=Close
Object state is open. [E] will close it.
Open. E=Open
Object state is open. [E] will open it.
Opening...
Object is being opened.
Preparing...
Object is being selected.
Undefined
Object state is undefined. Control is not possible.
Unresolved
Object state is unknown.
L o c a l / R e m o t e
= L o c a l
C o n t r o l C B
=O p e n. E=C l o s e
=C l o s e d. E=O p e n
C o n t r o l C B
=P r e p a r i n g ...
C o n t r o l C B
=A r e Y o u S u r e ?
C o n t r o l C B
=O p e n i n g ...
=C l o s i n g ...
1MRS 751107-MUM
C o n t r o l C B
=O p e n. E=O p e n
=C l o s e d. E=C l o s e

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