ABB RET670 Installation And Commissioning Manual

ExV is supplied by the Node at end of the Bus Segment
The specifications of the components are:
a) Ru + 5 V to Signal B = 390 W, 0.25 W ±2.5%
b) Rt Signal B to Signal A = 220 W, 0.25 W ±2.5%
c) Rd Signal A to GND = 390 W, 0.25 W ±2.5%
2.3.3 Bus power distribution
The end node in each Ph-segment applies 5 V bus excitation power to the Termination network via
the Excitation pair (ExV+ and GND) used in the Type 3 Physical layer specification.
5.6.3 Data on RS485 serial communication module cable
Type: Twisted-pair S-STP (Screened – Screened Twisted Pair)
Shield: Individual foil for each pair with overall copper braid
Length: Maximum 1200 m (3000 ft) from one system earth to the next system earth
(includes length from platform point to system
earth on both sides)
Temp: According to application
Impedance: 120 W
Capacitance: Less than or equal to 42 pF/m
Example: Belden 9841,Alpha wire 6412, 6413
5.7 Installing the GPS antenna
5.7.1
Antenna installation
The antenna is mounted on a console for mounting on a horizontal or vertical flat
surface or on an antenna mast.
Section 5 1MRK 504 088-UEN C
Installing the IED
70
Installation and commissioning manual

ABB RET670 Specifications

General

Rated Frequency	50/60 Hz
Inputs	Analog and binary inputs
Application	Protection of power systems
Communication Protocols	IEC 61850, DNP3, Modbus
Operating Temperature Range	-25°C to +55°C
Mounting	Rack mounted
Number of Binary Inputs	Up to 48
Number of Binary Outputs	32
Protection Functions	Overcurrent Protection
Outputs	Binary outputs
Enclosure	IP 54
Type	Line Differential Protection
Number of Analog Inputs	24