086349-002 ABB Controller module motor card inventory

Description

086349-002 Features:
256 color CTN, 16 level blue grayscale STN;
Backlight: CCFT;
32BIT RISC (206MHz) CPU;
Display area of 5.7 inches, with a resolution of 320X240 pixels;
Adjust the display contrast on the touch screen;
• Equipped with 2048Kbyte Flash Memory;
• Optional recipe card 1024K;
4-wire analog resistive touch screen;
• COM1/2: RS232&RS485/RS232&RS422&RS485;
Compatible with parallel ports;
24V (± 10%) DC power supply;
Power: less than 12W;
• RF radiation: CISPR22, Class A;
• Static discharge: IEC 61000-4-2 (EN55024/1998)
• RF sensitivity: IEC 61000-4-2 (EN55024/1998)
• Instantaneous high frequency: IEC 61000-4-2 (EN55024/1998)
Working temperature: 0-50 degrees Celsius;
Storage temperature: -10~60 degrees Celsius;
Environmental humidity: 20~90% RH without frost;
Anti vibration: 0.5mm displacement of 10~55Hz, for 2 hours in X, Y, and Z directions respectively;
Front panel sealing: IP65/NEMA4;

This protection function is used to introduce a trip time-delay in case of shortcircuit. S function is necessary when time-current discrimination is required
so that the tripping is delayed more and more by approaching the supply
sources.
The trip curve of this protection (which can be excluded) is defined by a current
threshold I2 and by a trip time t2. In details :
• I2 represents the current value beyond which the protection function
commands the opening of the circuit-breaker, according to one of the
following tripping characteristics:
– with inverse time delay, where the link time-current is given by the
relation I2
t = k (constant let-through energy)
– with definite time, where the trip time is given by the relation
t=k (constant time); in this case the tripping time is equal for any
value of current higher than I2;
• t2 represents the trip time of the protection, in seconds, in correspondence
with:
– a well defined multiple of In for the tripping curve at I2
t = k;
– I2 for the tripping curve at t = k
In order to set properly the current I4 and the time t4 of the function G, it is
necessary to comply with the requirements reported in the installation Standard
(see Chapter 4 of Part 2 – “Protection of human beings”).
Example:
XT4N 250 with trip unit Ekip LSIG In 250
function G (I4=0.2-0.25-0.45-0.55-0.75-0.8-1 x In)
IkPE=120 A
distribution system: TN-S.
In TN systems, a bolted fault to ground on the LV side usually generates a current with a value analogous to that of a short-circuit and the fault current flowing
through the phase and/or the protection conductor (or the conductors) does
not affect the earthing system at all.
The relation concerning TN-S distribution systems Zs x Ia ≤ Uo can be expressed as follows:
Ia ≤ Uo = IkLPE Zs
where:
• Uo is the voltage phase-to-PE;
• Zs is the fault ring impedance;
• Ia is the trip current within the time delay established by the Standard (see
Chapter 4 of Part 2 – “Protection of human beings”).
• IkLPE= is the fault current phase-to-PE
Therefore, it is possible to affirm that the protection against indirect contacts is
verified if the trip current Ia is lower than the fault current phase-PE (IklPE) which is
present in correspondence with the exposed conductive part to be protected.
Then:
Setting G = IkPE = 120 = 0.48
I
n 250
the setting 0.45 is selected.