ABB RER670 Applications Manual page 237

1MRK 506 375-UEN A
Railway application RER670 2.2 IEC
Application manual
external IEDs via the I/O and internal functions. An OR-gate is then used for the
combination.
ON and OFF
These inputs can be connected to binary inputs or to a communication interface
block for external control.
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.
START
The START input should be connected to the trip function (SMPPTRC) output,
which starts the auto recloser 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.
If StartByCBOpen is used, the circuit breaker open condition shall
also be connected to the START input.
STARTHS, Start 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_HS. High-speed
reclosing shot 1 started by this input is without a synchronization check.
SYNC
This input is connected to the internal synchrocheck function when required or to
an external device for synchronism. If neither internal nor external synchronism or
energizing check is required, it can be connected to a permanently high source,
TRUE. The signal is required for shots 1-5 to proceed (Note! Not the high-speed
step).
Section 12
Control
231