Logic - ABB Relion 670 Series Product Manual

Generator protection REG670
Version 2.2
The command function block has outputs that can be
used, for example, to control high voltage apparatuses
or for other user defined functionality.

14. Logic

Tripping logic SMPPTRC
A function block for protection tripping and general
start indication is always provided as a basic function
for each circuit breaker. It provides a settable pulse
prolongation time to ensure a trip pulse of sufficient
length, as well as all functionality necessary for correct
co-operation with autoreclosing functions.
The trip function block includes a settable latch function
for the trip signal and circuit breaker lockout.
The trip function can collect start and directional signals
from different application functions. The aggregated
start and directional signals are mapped to the IEC
61850 logical node data model.
General start matrix block SMAGAPC
The Start Matrix (SMAGAPC) merges start and
directional output signals from different application
functions and creates a common start and directional
STDIR ) to be connected to the Trip
output signal (
function.
The purpose of this functionality is to provide general
start and directional information for the IEC 61850 trip
logic data model SMPPTRC.
Trip matrix logic TMAGAPC
The trip matrix logic (TMAGAPC) function is used to
route trip signals and other logical output signals to
different output contacts on the IED.
The trip matrix logic function has 3 output signals and
these outputs can be connected to physical tripping
outputs according to the specific application needs for
settable pulse or steady output.
Group alarm logic function ALMCALH
The group alarm logic function (ALMCALH) is used to
route several alarm signals to a common indication, LED
and/or contact, in the IED.
Group warning logic function WRNCALH
The group warning logic function (WRNCALH) is used to
route several warning signals to a common indication,
LED and/or contact, in the IED.
Group indication logic function INDCALH
The group indication logic function (INDCALH) is used to
route several indication signals to a common indication,
LED and/or contact, in the IED.
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Basic configurable logic blocks
The basic configurable logic blocks do not propagate
the time stamp and quality of signals (have no suffix QT
at the end of their function name). A number of logic
blocks and timers are always available as basic for the
user to adapt the configuration to the specific
application needs. The list below shows a summary of
the function blocks and their features.
These logic blocks are also available as part of an
extension logic package.
• AND function block. The AND function is used to form
general combinatory expressions with boolean
variables. The AND function block has up to four
inputs and two outputs. One of the outputs is
inverted.
• GATE function block is used for whether or not a
signal should be able to pass from the input to the
output.
• INVERTER function block that inverts the input signal
to the output.
• LLD function block. Loop delay used to delay the
output signal one execution cycle.
• OR function block. The OR function is used to form
general combinatory expressions with boolean
variables. The OR function block has up to six inputs
and two outputs. One of the outputs is inverted.
• PULSETIMER function block can be used, for example,
for pulse extensions or limiting of operation of
outputs, settable pulse time.
• RSMEMORY function block is a flip-flop that can reset
or set an output from two inputs respectively. Each
block has two outputs where one is inverted. The
memory setting controls if, after a power interruption,
the flip-flop resets or returns to the state it had
before the power interruption. RESET input has
priority.
• SRMEMORY function block is a flip-flop that can set or
reset an output from two inputs respectively. Each
block has two outputs where one is inverted. The
memory setting controls if, after a power interruption,
the flip-flop resets or returns to the state it had
before the power interruption. The SET input has
priority.
• TIMERSET function has pick-up and drop-out delayed
outputs related to the input signal. The timer has a
settable time delay.
• XOR is used to generate combinatory expressions
with boolean variables. XOR has two inputs and two
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