ABB RELION RET670, Applications Manual

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IEC16000072 V1 EN-US
Figure 318: Configuration with XLNPROXY and GOOSEXLNRCV where only the
mandatory data in the IEC 61850 modelling is used
All the information from the XLNPROXY to the SCSWI about command following
status, causes for failed command and selection status is transferred in the output
XPOS. The other outputs may be used by other functions in the same way as the
corresponding outputs of the SXCBR and SXSWI function.
When a command has been issued from the connected SCSWI function, the
XLNPROXY function awaits the response on it from the represented switch through
the inputs POSVAL and OPOK. While waiting for the switch to start moving, it checks
if the switch is blocked for the operation. When the switch has started moving and no
blocking condition has been detected, XLNPROXY issues a response to the SCSWI
function that the command has started. If OPOK is used, this response is given when
XLNPROXY receives the signal.
If no movement of the switch is registered within the limit tStartMove , the command is
considered failed, and the cause of the failure is evaluated. In the evaluation, the
function checks if the state of the represented switch is indicating that the command is
blocked in any way during the command, and gives the appropriate cause to the
SCSWI function. This cause is also shown on the output L_CAUSE as indicated in the
following table:
1MRK 504 163-UUS A
Section 15
Control
Transformer protection RET670 2.2 ANSI 707
Application manual