ABB Relion 670 Series Applications Manual page 297

1MRK 505 370-UUS Rev. K
MODEINT
The auto reclosing mode is selected with the ARMode setting. As an alternative to the setting, the mode
can be selected by connecting an integer, for example from function block B16I, to the MODEINT input.
The six possible modes are described in table 6 with their corresponding MODEINT integer value. When
a valid integer is connected to the input MODEINT the selected ARMode setting will be invalid and the
MODEINT input value will be used instead. The selected mode is reported as an integer on the MODE
output.
ON and OFF
These inputs can be connected to binary inputs or to a communication interface block for external
control.
PLCLOST
This is intended for line protection permissive signal channel lost (fail) for example, PLC= Power Line
Carrier failure. It can be connected, when it is required to prolong the auto reclosing dead time when
communication is not working, that is, one line end might trip with a zone2 delay. If this is used the auto
recloser must also be started from zone2 time delayed trip.
RESET
Used to reset the auto recloser to start conditions. Possible hold by thermal overload protection will be
reset. Circuit breaker position will be checked and time settings will be restarted with their set times.
RSTCOUNT
There is a counter for each type of auto reclosing and one for the total number of circuit breaker close
commands issued. All counters are reset with the RSTCOUNT input or by an IEC 61850 command.
SKIPHS
The high-speed auto reclosing sequence can be skipped and be replaced by normal auto reclosing
sequence by activating SKIPHS input before the STARTHS high-speed start input is activated. The
replacement is done for the 1st shot.
RI
The START input should be connected to the trip function (SMPPTRC) output, which starts the auto
recloser for 1/2/3-phase operation. It can also be connected to a binary input for start from an external
contact. A logical OR-gate can be used to combine the number of start sources.
RI_HS, Initiate high-speed auto reclosing
It may be used when one wants to use two different dead times in different protection trip operations.
This input starts the dead time t1 3PhHS. High-speed reclosing shot 1 started by this input is without a
synchronization check.
SYNC
This input is connected to the internal synchronism check function when required or to an external device
for synchronism. If neither internal nor external synchronism or energizing check is required, it can be
Busbar protection REB670
Application manual
If StartByCBOpen is used, the circuit breaker open condition shall also be connected to
the RI input.
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Section 12
Control
291