Thytronic SIF5600 User Manual

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SIF5600 - Manual - 03 - 2008
Main characteristics
- Metal casing for projecting or flash mounting;
- screw terminals;
- connections to
CTs by means of detachable screw terminals (non short circuiting for the CTs);
- 2x16 character backlit LCD displays on versions SIF5600#3D and SIF5600#3F;
- five indicator LEDs on the front of the casing, two of which are dedicated to indicating the CB
position and the rest to showing ON (green), 50-51 (red) as well as showing tripping of the overload
and short-circuit functions, and 50N-51N (red) as well as indicating tripping of the ground fault func-
tions;
- key switch for enabling the breaker command buttons and enabling modification of the settings;
-
RESET button for resetting the LED indicators and output relays;
- breaker open-close buttons (CB OPEN, CB CLOSE);
- two power supply versions:
- auxiliary voltage 110...230 V
ac - 110...220 Vdc,
- auxiliary voltage 24...48 Vac - 24...48 Vdc,
- one block input circuit and two output circuits for the logical selectivity (pilot wire accelerated log-
ic), associable with second maximum overcurrent protection (50) and/or maximum residual current
(50N) thresholds; the block input and output circuits are equipped with periodic pilot wire continuity
checking functions and breaker failure and pilot wire short-circuit backup timers.
- two logical inputs, dedicated to sampling the breaker status (52a and 52b);
-
four output relays (K1...K4) with one change-over switch, independently programmable for START,
TRIPPING of each protective function threshold, SELF-TESTING or for controlling breaker opening/
closing. In addition, each output relay may be programmed to be normally energized or de-ener-
gized, and manually or automatically reset;
-
isolated RS485 serial interface in the terminal block, operating by means of the MODBUS RTU pro-
tocol, for remote communication;
-
isolated front panel RS232 serial interface with 9 pin connector, operating by means of the MOD-
BUS RT
U protocol, for local communication. When activated it has priority with respect to the RS485
MODBUS RTU terminal interface;
- measurement of the current fundamental component effective value by means of DFT (Discrete
Fourier Transform) with 32 samplings per current period (sampling period of 625 ms at 50 Hz nominal
frequency or 521 ms at 60 Hz nominal frequency).
- recording of the last eight events.
A BFO type electro-optical converter module is envisaged whenever transmission of the accelerated
logic signals for any distance by means of multimodal fibre optics is required.
T
he BFO module is in a casing suited to being mounted on a DIN rail, it has an auxiliary power supply,
and has 2 electrical to optical signal converters and 2 optical to electrical signal converters.
T
he most significant circuit characteristics are:
- the complete absence of any traditional mechanical calibration devices, since all calibration coef-
ficients are stored in non-volatile memory;
- galvanically isolated input and output circuits (including communication, block and digital input
circuits);
- measurement of input signals by means of sampling and conversion with 32 samplings per period;
- sampling of the state of the digital inputs with each process cycle (1...2 ms);
- optimal input signal filtering by means of the use of combined analogue and digital filters;
- traditional mechanical type output output contacts;
- auxiliary power supply provided by means of a switching circuit, having a particularly wide opera-
tional range and very reduced power dissipation;
- two or three phase current inputs (for functions 50-51) with the following characteristics:
- nominal phase current I
n
1 A, 5 A selectable by means of jumpers;
- nominal frequency 50 Hz.
- one residual current input (for functions 50N-51N) with the following characteristics:
- nominal current I
En
1 A, 5 A selectable by means of a jumper;
- nominal frequency 50 Hz.
T
he most significant operational characteristics are:
- operations to alter the characteristics do not interrupt normal relay operation;
- the impossibility to program unacceptable parameter values, thanks to automatic range parameter
limitation for the corresponding calibration fields

Thytronic SIF5600 Specifications

General

Brand	Thytronic
Model	SIF5600
Category	Relays
Language	English