ABB Relion REG670, Applications Manual

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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 = Off 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.
16.1.2.5 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
303 :
1MRK 502 071-UEN -
Section 16
Logic
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062 603
Application manual