Lock-Out - ABB REC670 Applications Manual

1MRK 511 401-UUS A
16.1.2.4
16.1.2.5
Bay control REC670 2.2 ANSI
Application manual

Lock-out

The SMPPTRC function block is provided with possibilities to initiate lock-out. The
lock-out can be set to only activate the block closing output CLLKOUT or initiate the
block closing output and also maintain the trip signal output TR3P (latched trip).
The lock-out can then be manually reset after checking the primary fault by activating
the input reset lock-out RSTLKOUT.
If external conditions are required to initiate a closing circuit lock-out but not to
lockout trip, this can be achieved by activating input SETLKOUT. The setting
AutoLock = Disabled means that the internal trip will not activate lock-out so only
initiation of the input SETLKOUT will result in lock-out. This is normally the case for
overhead line protection where most faults are transient. Unsuccessful autoreclose and
back-up zone tripping can in such cases be connected to initiate lock-out by activating
the input SETLKOUT.
Example of directional data
An example how to connect the directional data from different application functions to
the trip function is given below, see Figure 201:
Section 16
Logic
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