086329-004 ABB Controller module motor card inventory

Description

L – Overload protection with inverse long time delay
Function of protection against overloads with inverse long time delay and
constant specific let-through energy; it cannot be excluded.
L – Overload protection in compliance with Std. IEC 60255-3
Function of protection against overloads with inverse long time delay and trip
curves complying with IEC 60255-3; applicable in the coordination with fuses
and with medium voltage protections.
S – Short-circuit protection with adjustable delay
Function of protection against short-circuit currents with adjustable delay; thanks
to the adjustable delay, this protection is particularly useful when it is necessary
to obtain selective coordination between different devices.
S2
– Double S
This function allows two thresholds of protection function S to be set independently

and activated simultaneously, selectivity can also be achieved under
highly critical conditions.
D – Directional short-circuit protection with adjustable delay
The directional protection, which is similar to function S, can intervene in a
different way according to the direction of the short-circuit current; particularly
suitable in meshed networks or with multiple supply lines in parallel.
I – Short-circuit protection with instantaneous trip
Function for the instantaneous protection against short-circuit.
EFDP – Early Fault Detection and Prevention
Thanks to this function, the release is able to isolate a fault in shorter times than
the zone selectivities currently available on the market.
Rc – Residual current protection
This function is particularly suitable where low-sensitivity residual current
protection is required and for high-sensitivity applications to protect people
against indirect contact.
G – Earth fault protection with adjustable delay
Function protecting the plant against earth faults.
U – Phase unbalance protection
Protection function which intervenes when an excessive unbalance between the
currents of the single phases protected by the circuit-breaker is detected.
OT – Self-protection against overtemperature
Protection function controlling the opening of the circuit-breaker when the
temperature inside the release can jeopardize its functioning.
UV – Undervoltage protection
Protection function which intervenes when the phase voltage drops below the
preset threshold.
OV – Overvoltage protection
Protection function which intervenes when the phase voltage exceeds the
preset threshold.
RV – Residual voltage protection
Protection which identifies anomalous voltages on the neutral conductor.
RP – Reverse power protection
Protection which intervenes when the direction of the active power is oppoto normal operation.
UF – Under frequency protection
This frequency protection detects the reduction of network frequency above the
adjustable threshold, generating an alarm or opening the circuit.
OF – Overfrequency protection
This frequency protection detects the increase of network frequency above the
adjustable threshold, generating an alarm or opening the circuit.
M – Thermal memory
Thanks to this function, it is possible to take into account the heating of a
component so that the tripping is the quicker the less time has elapsed since
the last one.
R – Protection against rotor blockage
Function intervening as soon as conditions are detected, which could lead to
the block of the rotor of the protected motor during operation.
Iinst – Very fast instantaneous protection against short-circuit
This particular protection function has the aim of maintaining the integrity of the
circuit-breaker and of the plant in case of high currents requiring delays lower
than those guaranteed by the protection against instantaneous short-circuit. This
protection must be set exclusively by ABB SACE and cannot be excluded.
Dual setting
With this function it is possible to program two different sets of parameters (LSIG)
and, through an external command, to switch from one set to the other.
K – Load control
Thanks to this function, it is possible to engage/disengage individual loads on
the load side before the overload protection L trips.