Hitachi Relion 670 Series Applications Manual page 232
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Also See for Relion 670 Series:
- Applications manual (354 pages) ,
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- Product manual (192 pages)
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Section 12
Control
IEC13000016 V2 EN-US
Figure 84:
12.3.4
Switch controller SCSWI
After the selection of an apparatus and before the execution, the switch controller performs the
following checks and actions:
•
A request initiates to reserve other bays to prevent simultaneous operation.
•
Actual position inputs for interlocking information are read and evaluated if the operation is
permitted.
•
The synchrocheck/synchronizing conditions are read and checked, and performs operation upon
positive response.
•
The blocking conditions are evaluated
•
The position indications are evaluated according to given command and its requested direction
(open or closed).
The command sequence is supervised regarding the time between:
•
Select and execute.
•
Select and until the reservation is granted.
•
Execute and the final end position of the apparatus.
•
Execute and valid close conditions from the synchrocheck.
At error the command sequence is cancelled.
The switch controller is not dependent on the type of switching device SXCBR or SXSWI. The switch
controller represents the content of the SCSWI logical node (according to IEC 61850) with mandatory
functionality.
226
APC - Local remote function block
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1MRK506375-UEN Rev. N
IEC13000016-2-en.vsd
M16596-3 v7
Railway application RER670
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