ABB Relion Technical Manual page 481

1MRK 502 048-UUS A
Technical manual
power interruption. The RESET input has priority if both SET and RESET are
operated simultaneously.
Configurable logic Q/T
A number of logic blocks and timers, with the capability to propagate timestamp and
quality of the input signals, are available. The function blocks assist the user to adapt the
IEDs configuration to the specific application needs.
• ORQT OR function block that also propagates timestamp and quality of input
signals. Each block has six inputs and two outputs where one is inverted.
• INVERTERQT function block that inverts the input signal and propagates
timestamp and quality of input signal.
• PULSETIMERQT Pulse timer function block can be used, for example, for pulse
extensions or limiting of operation of outputs. The function also propagates
timestamp and quality of input signal.
• XORQT XOR function block. The function also propagates timestamp and quality
of input signals. Each block has two outputs where one is inverted.
• TIMERSETQT function has pick-up and drop-out delayed outputs related to the
input signal. The timer has a settable time delay. The function also propagates
timestamp and quality of input signal.
• ANDQT AND function block. The function also propagates timestamp and quality
of input signals. Each block has four inputs and two outputs where one is inverted.
• SRMEMORYQT 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 the block after a power interruption should return to the
state before the interruption, or be reset. The function also propagates timestamp and
quality of input signal.
• RSMEMORYQT 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 the block after a power interruption should return to the
state before the interruption, or be reset. The function also propagates timestamp and
quality of input signal.
Section 13
Logic
475