12.2.3 Setting guidelines
IP14929-1 v1
12.2.3.1 Configuration
M12399-3 v3
Use the PCM600 configuration tool to configure signals.
Auto recloser function parameters are set via the local HMI or Parameter Setting Tool (PST).
Parameter Setting Tool is a part of PCM600.
Recommendations for input signals
M12399-7 v10
Please see Figure 134, Figure 135 and Figure 136 and default factory configuration for
examples.
BLKOFF
Used to unblock the auto recloser when it has been blocked due to activating
BLKON
input or
by an unsuccessful auto reclosing attempt if the
BlockByUnsucCl
setting is set to
On
.
BLKON
Used to block the auto recloser, for example, when certain special service conditions arise.
When used, blocking must be reset with
BLKOFF
.
CBCLOSED and CBREADY
These binary inputs should pick-up information from the circuit breaker. At three operating
gears in the circuit breaker (single pole operated circuit breakers) the connection should be
“All poles closed” (series connection of the NO contacts) or “At least one pole open” (parallel
connection of NC contacts). The
CBREADY
is a signal meaning that the circuit breaker is ready
for an auto reclosing operation, either Close-Open (CO), or Open-Close-Open (OCO). If the
available signal is of type “circuit breaker not charged” or “not ready”, an inverter can be
inserted in front of the
CBREADY
input.
INHIBIT
To this input shall be connected signals that interrupt an auto reclosing cycle or prevent a start
from being accepted. Such signals can come from protection for a line connected shunt
reactor, from transfer trip receive, from back-up protection functions, busbar protection trip
or from breaker failure protection. When the circuit breaker open position is set to start the
auto recloser, then manual opening must also be connected here. The inhibit is often a
combination of signals from external IEDs via the I/O and internal functions. An OR-gate is
then used for the combination.
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
Section 12 1MRK 505 370-UEN D
Control
274 Busbar protection REB670
Application manual
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