Logic - ABB REG670 Product Manual

Generator protection REG670 2.2 and Injection equipment REX060,
REX061, REX062
Product version: 2.2.1

13. 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 output signal (
connected to the Trip 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.
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.
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These logic blocks are also available as part of an extension
logic package with the same number of instances.
• 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 outputs.
One of the outputs is inverted. The output signal OUT is 1 if
the input signals are different and 0 if they are the same.
Configurable logic blocks Q/T
The configurable logic blocks QT propagate the time stamp
and the quality of the input signals (have suffix QT at the end
of their function name).
The function blocks assist the user to adapt the IEDs'
configuration to the specific application needs. The list below
shows a summary of the function blocks and their features.
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