ABB REB500 - Binary Inputs on Central Unit

1MRK 505 350-UEN Section 2
Signals
Technical Manual 15
Distributed busbar protection REB500
Table 14 BU output signals for voltage release (UV)
Signal Description
28805_Voltage
criterion
The voltage release
criterion of this bay unit is fulfilled (measuring voltage
is below the setting of the voltage criterion).
Table 15 BU output signals for bay protection (BP) (REB500sys only)
Signal Description
29405_BP blocked
The outputs of
the bay protection functions are blocked (either the
bay concerned or throughout the system).
29410_BP partial blocked
Certain bay protection functions are blocked (
Signal must be set
explicitly by the bay protection).
29600 ParaSet_1 active
Parameter
set 1, 2, 3, or 4, respectively, is active. This can take
place via the station bus or an input signal.
29605 ParaSet_2 active
29610 ParaSet_3 active
29615 ParaSet_4 active
BP output signals available for
configuration
In addition to the bay
protection output signals listed above which
are always available, use can also be made of the signals
configured for the binary signal output block of the bay protection.
The number of these signals depends on the protection functions
and signals included in the bay protection.
2.4 Binary inputs on central unit
Most central unit signals can only be assigned once. However, two input signals
(31105_External TRIP BB zone and 31805_External release BB zone) occur for
each busbar zone. Thus the busbar section must be given when selecting one of
these signals.
Table 16 CU general input signals
Signal Description
31105_External TRIP BB
zone (BB zone tripped by
external signal)
A busbar section can be tripped by a signal applied to this input.
A
maximum of 12 bus zones resp. external tripping signals can be
configured in one BIO unit. One input can be configured for each
section. Sections connected by isolators are tripped together
(intertripping).
31205_Block SP
Blocks the station protection
(SP) functions (BBP, BFP, EFP, OCDT
and PDF) including “External Trip”, “External TRIP BB zone” and
intertripping throughout the system.
31210_Block output relays
All the output contacts configured for the central unit and all the bay
units are blocked, i.e. the current status of the relays is maintained.
31215_Block IEC master
direction
The system does not transfer any events, error messages,
measurements etc., to the master station via the station bus
IEC 60870-5-103 when this input is active.
31505_A
ccept bus image
alarm
Acknowledges (resets) an isolator alarm. If it is continuously active, a
new isolator alarm is immediately reset.