ABB RELION REB670, Applications Manual

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functions, but the circuit breaker is still not closed. This is done by setting AutoCont =
Enabled and tAutoContWait to the required delay for the function to proceed without a
new start.
12.2.2.22 Thermal overload protection holding the auto recloser back
M12391-226 v3
If the THOLHOLD input (thermal overload protection holding auto reclosing back) is
activated, it will keep the auto recloser on a hold until it is reset. There may thus be a
considerable delay between start of the auto recloser and the breaker closing command
to the circuit breaker. An external logic limiting the time and sending an inhibit to the
INHIBIT input can be used. The input can also be used to set the auto recloser on hold
for a longer or shorter period.
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 128 , Figure 129 and Figure 130 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
1MRK 505 370-UUS A
Section 12
Control
Busbar protection REB670 2.2 ANSI 327
Application manual